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Quotation1.svg 3 Eras, 2 Sonics, 1 Epic Adventure! Quotation2.svg
— Tagline

Sonic Generations (ソニック ジェネレーションズ Sonikku Jenerēshonzu?) is a 2011 platformer video game developed by Sonic Team and published by Sega for the Xbox 360, PlayStation 3, PC, and Nintendo 3DS. The game was made and released to celebrate the twentieth anniversary of the Sonic the Hedgehog series. The Japanese version has different subtitles: White Time and Space (白の時空 Shiro no Jikū?) for the home consoles, and Blue Adventures (青の冒険 Ao no Bōken?) for the 3DS version.[2] All versions of this game can be played in stereoscopic 3D, but a 3DTV as well as a pair of 3D glasses are required for the PlayStation 3 and Xbox 360 versions, being the first game of the franchise to support stereoscopic 3D.

The PlayStation 3 version was available to be streamed on the PlayStation 4 and PC via the PS Now subscription service, with PlayStation 3, PlayStation Vita, Sony Bravia Smart TV (2013, 2014, 2015 and 2016 models), Sony Blu-Ray players and Samsung Smart TV support for the service being dropped in 2017. In April 2018, the Xbox 360 version of the game was made backwards compatible with the Xbox One and supports Xbox One X enhanced features.[3]


Development of Sonic Generations began in 2009 when Takashi Iizuka realized that there was no anniversary game planned for 2011. His idea for a tribute was accepted by Sega and developments began. Sega held an internal poll for employees of Sega, including Sega of Japan, America, and Europe asking what their favorite levels from the Sonic series were. After ranking the most popular levels, a website was launched holding another poll asking the opinions of fans of the series.[4]

In late 2010, rumors of a Sonic Anniversary game surfaced online.[5] The rumors told of a game that would potentially feature remakes of levels from throughout Sonic's history in 2D and 3D. The game was alleged to be released on all major game consoles at the time: PSP, PS3, Xbox 360, Wii, and DS.

On 18 April 2011, Sonic Generations was finally announced for the PS3 and Xbox 360. A GameStop release list printed on 7 May 2011 showed a 3DS port of Generations with a tentative release date of 31 December 2011. Later in the month, a Sega-Sammy earnings report listed 3DS and PC versions of the game; however, a revised version of the report no longer listed either version.[6] The June 2011 issue of Nintendo Power finally confirmed a 3DS version of Sonic Generations.[7] It contained an in-depth preview and interview with Takashi Iizuka.

The 3DS had minor story changes as well. The writers for the story are credited as Ken Pontac and Warren Graff of Happy Tree Friends fame. They also worked on Sonic Colors and MadWorld. Tetsu Katano, who directed Sonic and the Black Knight and did work on the Adventure series, directed the 3DS edition. Like Sonic Colors (DS), Sonic Team and Dimps co-developed the 3DS edition.

Sega officially announced a PC version of the game on 11 October 2011.[8] This version was outsourced and developed by UK company "Devil's Details".


The game features levels derived from twenty years of Sonic history, ranging from levels from games on the Sega Genesis/Mega Drive, to the Dreamcast, to the Wii.[9] There is a level taken from almost every main series Sonic game to represent the different eras. Each level can be played with either Classic Sonic or Modern Sonic, each taking their own routes throughout the level. Classic Sonic's levels are strictly two-dimensional side-scrolling stages, using classic moves like the Spin Attack and the Spin Dash. Modern Sonic's levels, on the other hand, carry on the current modern 2D/3D gameplay of recent titles such as Sonic Unleashed and Sonic Colors, featuring the Homing Attack, Freestyle Tricks, a Drift, the Stomp, the Light Speed Dash, and the Boost. Red Star Rings return in the HD version. Five can be found in each Act, and collecting them unlocks extras such as music, art, and movies.

The hub world starts out at White Space, but opens up more as the Sonics pass through more levels. The Hub worlds are only playable in 2D, so they are not free roam like they were in Unleashed. One character is rescued in each stage. Characters rescued will stand outside the entrance to the stage, and they can be talked to. Also, there is an area above the entrance to the main stages where the player can access Challenge Acts and rival battles. Bosses are accessed through special areas known as "Boss Gates," found at the end of each era.

The 3DS version, unlike the HD version, makes the Modern Sonic gameplay similar to Sonic Rush, while also featuring Special Stages based on Sonic Heroes. Some bosses are played as Classic Sonic, and some are played as Modern Sonic. Act 1 is played as Classic Sonic and Act 2 is played as Modern Sonic, and there are ten missions per level.

Classic Sonic

Classic Sonic's levels are strictly two-dimensional side-scrolling stages that are similar to the games in the 1990s

Classic Sonic stages consist of him running in a permanent two-dimensional perspective, platforming all the way towards an end sign post just like in the original games in the 1990s. Patrick Riley referred to Classic Sonic levels as "momentum-based platforming."

The 3DS version uses stereoscopic 3D to give a sense of depth. Classic Sonic also has an unlockable homing attack in both versions.

Modern Sonic

The 'Modern' gameplay kept the style of Sonic games that has existed since Sonic Unleashed in 2008

The levels follow the 2D/3D style gameplay of Sonic Unleashed and Sonic Colors, featuring techniques such as boosting and homing attacks.[10] As well as classic power-ups such as Invincible and Speed Shoes, certain levels have unique power-ups, such as skateboards in City Escape and Wisp powers in Planet Wisp.[11]

The player can perform Freestyle Tricks, which can be used to fill up the boost gauge, by launching off Trick Ramps or passing through Rainbow Rings. There is a new visual element to all returning levels, such as the cave in Green Hill. There is more platforming involved, the camera is immovable and quick reaction times are necessary.


The Skill Shop allows players to buy upgrades via points

The Skill Shop, owned by Omochao allows players to use points earned from high scores to unlock upgrades such as abilities, shields, and even the original Sonic the Hedgehog Genesis game (on PS3/Xbox 360 only). Completing challenges, as well as finding Red Star Rings hidden in each of the main Acts, unlocks additional skills, as well as bonus concept artwork and music. The music can then be played in any stage, challenge, or boss fight.[12] There are also online leader-boards for two modes: Ranking Attack, which challenges players to obtain the best time and score on each level, and 30 Second Trial, which challenges players to see how far they can get through a level in thirty seconds.


In the 3DS version, Modern Sonic's gameplay is similar to that of Sonic Rush and the DS version of Sonic Colors. He has the Boost, the ability to slide under obstacles, jump off walls, and the Homing Attack. After the second era, Modern Sonic learns the Stomp. Modern Sonic's levels use the 3D effect of depth on the 3DS version more actively as well as to giving a better view for when Modern Sonic jumps into the background, although the console versions are 3D-TV compatible. In the HD version, Modern Sonic is only able to wall jump off certain panels (similar to the DS version of Sonic Colors), but in the 3DS version, he is able to wall jump on any wall (much like Sonic Unleashed and the Wii version of Sonic Colors).


HD version

In a past version of Green Hill, Classic Sonic is running until he hears a noise. Suddenly, the mysterious entity known as the Time Eater appears in the sky and the screen washes white.

In the present day, Sonic celebrates his birthday with his friends until the Time Eater disrupts the party, sucking everyone through various "time holes" and scattering them across different points in Sonic's past. Sonic tries to stop the monster, but is easily overwhelmed by its power. After regaining consciousness, Sonic finds himself in a strange dimension known as White Space, a realm where time and space end up after they have been 'erased' by being drained of color and life. Sonic rescues his best friend Miles "Tails" Prower and as they search for their friends, they encounter versions of themselves from the past, referred to as their "Classic" selves. As the two Tails determine that Time Eater's actions are damaging time and space itself, which is why it is white and lifeless, both "Classic" and "Modern" Sonic race through their history, restoring time to normal and rescuing their friends. They also realize at one point that the Time Eater's weakness are the Chaos Emeralds.

After restoring the worlds and collecting all the Chaos Emeralds, they confront the Time Eater, and are shocked (Modern Sonic being annoyed) to find that both Classic and Modern Dr. Eggman are piloting it. Modern Eggman reveals that while drifting through space following the events of Sonic Colors, he discovered the Time Eater, thinking about the idea to use its powers and decided to use it to alter the past and undo his previous defeats, but he needed someone just as smart as him to help modify the Time Eater for combat, which was why he had it abduct his Classic self earlier. Although the Time Eater manages to nearly defeat the two Sonics, the support of their friends and the power of the Chaos Emeralds allow them to transform into Super Sonic and Classic Super Sonic, and confront both versions of Eggman. Despite attacking with missiles, warping arms and slowing down time, the Sonics penetrate the Time Eater's core, destroying it. The heroes return to the present and continue celebrating Sonic's birthday. After the party, Classic Sonic and Classic Tails travel back to their own world as everyone bids their farewells.

A post-credits scene shows the two Eggmen lost in White Space. The two argue as they search for an exit, discuss whether or not they ever defeat Sonic and contemplate if they should go back and get their teaching degree as opposed to continuing their misdeeds.

Nintendo 3DS

The Time Eater attacks.

The story begins with Classic Sonic in Green Hill. After completing Act 1, a purple vortex in the sky appears and surprises Classic Sonic. After that, it goes all the way to the present day and Sonic is invited to a birthday party by Tails. However, Sonic arrives early, so Tails tells him to wait. But then a vortex sucks Tails into it. Sonic jumps in but is "attacked," though he manages to get in anyway. Sonic sees a white world and wonders what's going on. Modern Sonic rescues Tails after restoring Green Hill, and Tails tells him that he sees a big city in nighttime and a giant mushroom, so Sonic decides to go check those places out, being followed by Classic Sonic, who is believed by Tails to be Modern Sonic.

After restoring Casino Night, Tails informs Sonic that he feels like he has been there and Sonic mentions that he had some sort of "déjà vu" of that place too. After restoring all of the zones in the first era, the Boss Gate opens and Sonic enters it. He then sees Classic Sonic through a glass, thinking that it is a mirror. Then, both Sonics hear Eggman's voice, and Classic decides to follow the voice through a portal, but Modern was unable to get there in time. After entering the portal, Classic Sonic meets with Metal Sonic and races him. After winning, Classic Sonic meets with Classic Eggman on his giant robot, the Big Arm. After the boss fight with the Big Arm, Classic Eggman is kidnapped by the Time Eater and the two Sonics and the two Tails meet. The Tails' explain that they are traveling through time and space. Classic Sonic then learns the Homing Attack after Modern Sonic used it on some Spinners.

After clearing the second era, which is comprised of Emerald Coast and Radical Highway, the Sonics go to the boss gate and Modern Sonic tells Classic Sonic that he's going to take care of it. After beating both Shadow and the Biolizard, Tails does some modifications to Modern Sonic's shoes so he can do the Stomp.

After the third era, comprised of Water Palace and Tropical Resort, Sonic meets with Silver, and then Modern Eggman again on his Egg Emperor. After the fight, Eggman is kidnapped by the Time Eater again.

After restoring all the levels and collecting the Chaos Emeralds, the Sonics go to fight the Time Eater who turned out to be some sort of monster being controlled by both Classic and Modern Eggman, and from seeing both Tails defend the Sonics from the monster, the Chaos Emeralds allow the Sonics to go Super.

After defeating the Time Eater, both Sonics and Tails return to the place where the party was going to take place, and Modern Sonic starts eating his chili dog. However, Classic Tails realizes that the vortex to their world is closing, so he and Classic Sonic have to go back. Just before leaving, Classic Sonic shows Modern that he is learning the Boost as well. After telling him to have a great future, Modern Sonic says goodbye to Classic Sonic and he, along with Classic Tails, return home.

In the post-credits scene, both Classic and Modern Eggman are trapped in the White Space, and argue with each other. The real difference is that a teaching degree is not mentioned, and it simply ends with Classic Eggman asking his future self what time it is a second time.

Sonic Boom

The Sonic Boom logo.

A Sonic Generations demo was playable at 2011's E3 Expo, under the name "Sonic Boom" (no relation to the animated series.) It was the first major American Sonic event, being hosted by Sega, and took place on June 8, at 6pm PT. At E3, Sonic Generations was playable in both HD and 3DS versions. Although only Green Hill was playable for the console versions, City Escape was shown; Green Hill was playable, including the boss Big Arm, was playable for the 3DS version. There was also a Birthday Song for Sonic sung at Sonic Boom and the ending of the song, "Happy Birthday Sonic!" was heard in Sonic Generations.[13] This song appeared at the Tokyo Joypolis event and at the Summer of Sonic event in London. It appeared at the Gamescom 2011 event in Germany, and at TGS (Tokyo Game Show) 2011.

Demo release

The Australian government’s OFLC rated a multi-platform demo release of Sonic Generations and Sega formally announced at E3 that they would release a demo for PSN and Xbox Live on Sonic's 20th Anniversary, 23 June. The demo only contained Green Hill, and only the Classic Sonic playthrough. However, this demo also contained many unused files that revealed much about the full game, notably the stage list. The demo was only available until 12 July, at which point it was no longer available, including for players who had already downloaded it; the file essentially locked itself. In the Xbox Live version, one has to be an Xbox Live Gold Member to download the demo although in the PSN version, a PlayStation Plus Subscription is not required. The name of the demo is "Sonic Generations Green Hill Zone Demo #1", indicating another demo was on the way. Sega confirmed on their blog a second demo released in Europe for PSN and Xbox Live on October 18 and was released in North America for PSN on 25 October.[14] The demo contains both classic and modern Sonic playable in Green Hill and has no time limit.


Main article: Skills

Skills are items both Sonics can use in acts and some missions. They can be unlocked by doing certain Challenge Acts, buying them at the Skill Shop, or collecting five Red Star Rings in an act. Some Skills are exclusive for either Classic or Modern Sonic, and cost a number of skill points to be equipped. They do not work during Challenge Acts or Boss battles though.

Profile Card (3DS version)

The profile card is a feature in the 3DS version. It shows the player's user name, their rank (from Beginner to Grand Master), how many years have passed since they became a Sonic fan, their favorite Sonic game, as well as their favorite character, their Mii, and the points it has. On the back (the player can turn the card by pressing the R button), it shows the progress they had in the story, how much they had unlocked in the Collection Room, how many missions they had unlocked, how many rings had been collected, their play time, and all of the ranks the player has achieved on the levels.

The player can also unlock card patterns for it by leveling up the card. The card patterns were taken from different Sonic games, including all the ones that are represented in Generations. There are patterns of games such as Sonic 3D, Sonic the Hedgehog Spinball, Sonic the Fighters, Sonic Riders and Shadow the Hedgehog. Some of Sonic's transformations, such as Excalibur Sonic and the Werehog, receive a card pattern.

When a card is leveled up two ranks, the card changes to a new color. For example, when a card is Rank Beginner (second-lowest rank), the card's color is yellow, but if the player reaches the next rank (Intermediate), the card turns orange. Once the player has reached the Grand Master Rank, the card turns silver and has a shining effect. When the player reaches the final rank, Legendary (999999 points), the card turns golden and sparkles.

The ranks are:

  • Novice (Yellow)
  • Beginner (Yellow)
  • Intermediate (Orange)
  • Skilled (Orange)
  • Advanced (Red)
  • Expert (Red)
  • Pro (Blue)
  • Master (Blue)
  • Grand Master (Silver)
  • Legendary (Golden)

Versus Mode (3DS version)

VS mode menu.

There is local wireless and Wi-Fi 2-player race mode in the 3DS version of the game. In the multiplayer mode, the player can use Download Play to send a signal to another 3DS user (though both players must have a copy of the game), or the player can challenge the world by using the Wi-Fi connection. There are also online leader-boards between their races and world-wide races. By playing online races, one can earn points and card patterns for their profile card, and after playing more online races, the player can unlock extra content in the collection room, as well as some of the 100 extra missions.

Also by playing online races, the player can obtain a special skill to use in the main game (the player can only get one skill per day). The skills are:

To use a skill, the player must press the L button or touch the skill icon on the touch screen.

StreetPass (3DS version)

Example of a Profile Card.

StreetPass is used to unlock special content and challenges, and is activated when someone with a 3DS passes by someone else with a 3DS. The player can also use the Nintendo 3DS's "Play Coins" (earned by using the pedometer) to buy content such as new missions (which usually cost five Play Coins each) in case one is unable to StreetPass. The player can also unlock extra content by playing online. With StreetPass, the player can exchange their profile card with other players. Once the player StreetPasses somebody, their profile card gets upgraded in various ways.[15]

30-second Trial (HD version)

Sonic Generations 30 second trial.png

In this mode, the player has to get as far as they can in a stage in 30 seconds. After time runs out, a sign post is placed in the spot where the player is standing. In other cases if they reach the goal before the time runs out (which is only possible via time hacking), the mode abruptly ends without the score saved. They have the option to try again or continue playing to find the sign posts of their friends who are ahead or hopefully behind them. They can upload their score online and see which of their friends made it the farthest in one specific level.

Time Attack

In this mode, the player can see how fast he/she can clear a stage, a rival, or a boss fight, and can share their time in online leader-boards. In the 3DS version, all stages can be played for a top time, and 300 Supporter Points (for the player's profile card) are awarded for each time submitted to the leader-boards. In the console version, Time Attack can only be done online, and only the eighteen main Acts can be played for a top time.


Image Characters Biography
SG modern and classic.png Sonic the Hedgehog The world's fastest supersonic hedgehog is back again. He loves freedom, and hates anything unjust. Although he's short tempered at times, he can't leave anyone in need of help. He was about to enjoy his birthday until a mysterious creature appeared...
CharaArtr2 WTails.png Miles "Tails" Prower Tails is a kid fox who can fly by spinning his two tails. He loves to work with machinery, and his inventions have helped Sonic many times.
Sgenerations.png Dr. Eggman The evil genius of science is a long time rival of Sonic. Countless times he's challenged Sonic, but each time his ambitions are shattered. But how about this time...?
Time-eater-sonic-generations.png Time Eater A mysterious monster that appeared out of nowhere. It created a mysterious maelstrom that blew Sonic's friends into another dimension.






HD version

Nintendo 3DS

Bosses and Rivals


HD version Bosses

Nintendo 3DS version Bosses

Final Boss



Classic Sonic is silent throughout the game, but still shows his personality through his actions and gestures. Aaron Webber mentioned in an interview, that if anyone were to be Classic Sonic, it would be Jaleel White. Aaron had to make a choice whether Classic Sonic would be voiced by Jaleel White or have no voice at all. Aaron also mentioned that he grew up with the classic cartoons of Sonic like Adventures of Sonic the Hedgehog, and he thought Jaleel White did a fantastic job.

For the first time, voice overs exist not only for English and Japanese, but also for German, French, Italian and Spanish. The French voice cast (except for Vector) and the German voice cast (except for Shadow, Cream, Vector, Espio, Charmy and Rouge) all reprise their roles from Sonic X.

Role English voice actor Japanese voice actor French voice actor Italian voice actor German voice actor Spanish voice actor
Sonic the Hedgehog Roger Craig Smith Jun'ichi Kanemaru Alexandre Gillet Renato Novara Marc Stachel Jonatán López
Miles "Tails" Prower Kate Higgins Ryo Hirohashi Marie-Eugénie Maréchal Benedetta Ponticelli Anke Kortemeier Graciela Molina
Classic Tails Takuto Yoshinaga
Amy Rose Cindy Robinson Taeko Kawata Naïké Fauveau Serena Clerici Shandra Schadt Meritxell Ribera
Knuckles the Echidna Travis Willingham Nobutoshi Canna Sébastien Desjours Maurizio Merluzzo Claus Peter Damitz Sergio Mesa
Doctor Eggman Mike Pollock Chikao Ōtsuka Marc Bretonnière Aldo Stella Hartmut Neugebauer Francesc Belda
Classic Eggman
Cream the Rabbit Michelle Ruff Sayaka Aoki Marie Millet Sabrina Bonfitto Nicole Hannak Geni Rey
Rouge the Bat Karen Strassman Rumi Ochiai Marie Lenoir Jasmine Laurenti Marianne Graffam Ana Vidal
Shadow the Hedgehog Kirk Thornton Kōji Yusa Benoît DuPac Riccardo Lombardo (3DS) Klaus Lochthove Manuel Gimeno
Maurizio Merluzzo (Console and PC)
Espio the Chameleon Troy Baker Yūki Masuda Antoine Nouel Silvio Pandolfi Andreas Hofer Dani Albiac
Blaze the Cat Laura Bailey Nao Takamori Delphine Braillon Tania De Domenico Greta Galisch Carmen Ambrós
Silver the Hedgehog Quinton Flynn Daisuke Ono Hervé Grull Davide Albano Roland Wolf Ángel de Gracia
Vector the Crocodile Keith Silverstein Kenta Miyake Philippe Roullier Diego Sabre Andi Krösing Alfonso Vallés
Charmy Bee Colleen O'Shaughnessey Yōko Teppōzuka Marie Millet Emanuela Pacotto Luisa Wietzorek Graciela Molina
Omochao Laura Bailey Etsuko Kozakura Delphine Braillon Sabrina Bonfitto Tabea Börner Sofía García


Cover of Blue Blur: Sonic Generations Original Soundtrack.

The soundtrack for Sonic Generations is called "Blue Blur: Sonic Generations Original Soundtrack" which includes the Soundtrack for both the HD and Nintendo 3DS versions of Sonic Generations.[17][18]

The music in the game was remixed by Jun Senoue and Tatsuya Kozaki, with guest remixes done by Tomoya Ohtani, Kenichi Tokoi and Naofumi Hataya (who remixed the classic versions of the Genesis stage themes), among others.

Unlockable music

Music can be unlocked by completing some missions or collecting a number of Red Star Rings. The player can view his/her unlocked music by going to the collection room. The music for each stage in the game can be replaced by any unlocked music. There is a total of 50 unlockable songs for each version.

HD version

Nintendo 3DS version


Inside the media room of the HD version of the game, there lies a Statue Room where the player can collect many characters with various codes, even the regular enemies and four characters who didn't appear in the game otherwise. The room is accessible by holding Back (Xbox 360 and PC)/Select (PS3) while in the collection room. These statues are:

In the 3DS version's collection room, there's a section called "Models" which is basically the same thing as the statue room. However, the statues are unlocked by doing the missions, rather than using special codes. It should be noted that all of the character and emerald models are from special missions, and the bosses are from boss missions.

The models are:


Stages are divided into three eras, each representing games from a different generation of video game consoles. The first era represents games from the fourth generation, on the consoles the Sega Genesis/Mega Drive and Sega CD. The second era represents games from the sixth generation, on the consoles the Dreamcast and GameCube/Xbox/PlayStation 2. The third era represents games from the seventh generation, on the consoles the PlayStation 3/Xbox 360, Wii and Nintendo DS. Levels and bosses differ between the HD and 3DS versions except Green Hill.

In the HD version, the level progression for Classic and Modern Sonic are kept separate within eras.


First era

Classic Sonic in Chemical Plant.

Second era

Modern Sonic in City Escape.

Third era

Modern Sonic in Planet Wisp


Classic Sonic battling the Death Egg Robot.


Unlike the HD versions, after the player beats Green Hill in the first era, they are free to choose which Zone and Act of the era they want to do first.[19]

First era

Classic Sonic in Green Hill Zone.

Second era

Modern Sonic in Radical Highway.

Third era

Classic Sonic in Tropical Resort


Modern Sonic battling the Egg Emperor

Special Stages

Special Stages appear exclusively in the 3DS version, and are an updated version of the ones from Sonic Heroes. These are unlocked automatically upon completing both Acts of a stage, but do not have to be beaten right away. A Chaos Emerald will be achieved if the stage is completed; however, Super Sonic is exclusive to the final boss, unlike in the console and PC versions.[20]

In the console versions, the player collects the Chaos Emeralds by defeating the three bosses and three rivals, plus one more that is automatically given when both Acts are cleared on Planet Wisp.

Other homages to the series

Sonic the Hedgehog (1991):

  • The underwater sections in Act 1 of Seaside Hill bear features from Labyrinth Zone.
  • The colors from the HD version of Green Hill resemble the ones from the original version.
  • When pressing start in the title screen and when choosing an act in the 3DS version, the symbols from the Japanese box art appear.
  • If the player gets an "A" rank with Classic Sonic, he'll do the pose from the box art of this game.
  • The Buzzsaws in both acts of Planet Wisp return from Scrap Brain Zone.
  • In both acts of Chemical Plant and Water Palace, there are waterslides that function the same way as the ones from Labyrinth Zone.
  • In City Escape and Radical Highway, certain barrels are set up like the ones from Spring Yard Zone.
  • Classic Sonic starts his idle animations with his foot tapping animation which originated in this game.

Sonic the Hedgehog (8-bit):

  • The colors from the 3DS version of Green Hill resemble the ones from the 8-bit version.

Sonic the Hedgehog 2:

  • In both acts of Green Hill, there are corkscrew bridges resembling the ones in Emerald Hill Zone.
  • In Classic Rooftop Run, the Gondolas return which came from Hill Top Zone.
  • In both acts of Chemical Plant and Water Palace, there are waterslides that function the same way as the oil slides from Oil Ocean Zone (although they first appeared in Labyrinth Zone).
  • When left waiting long enough without getting talked to in front of Green Hill, Modern and Classic Tails yawn like they first did in this game.
  • Two of Classic Sonic's idle animations, one where he looks at a "watch" on his arm, and one where he impatiently lies back, come from this game.

Sonic the Hedgehog CD:

  • Classic Sonic's Crisis City (Act 1) has a 90-degree angle ramp like the "3D" upward ramps in Palmtree Panic present.
  • Classic Sonic's City Escape (Act 1) has a similar ramp.
  • In Classic Seaside Hill, there is a secret area along with a red ring, this was here to tribute the secret Angel statue which was found in Wacky Workbench past.
  • In the 3DS version, when Sonic is about to run out of air underwater, the music doesn't change to the drowning theme, like in this game.

Sonic the Hedgehog 3 & Knuckles:

  • Act 1 of Seaside Hill and Water Palace contain references to parts of Hydrocity Zone, such as the grabbing poles and the small propellers.
  • In Sky Sanctuary Act 1, there are platforms that fly as Classic Sonic runs on them. They will also wear out and stop working after running on one for too long. These are apparently based on the spinning blue tops from Marble Garden Zone.
  • If the player gets a "C" rank with Classic Sonic, he will do the pose from the Japanese box art of Sonic the Hedgehog 3.
  • In Sky Sanctuary Act 2, there are indoor areas that resemble Hidden Palace Zone.
  • If Knuckles is saved by Modern Sonic, he says that it's good to have his sanctuary back, referencing its collapse.
  • On certain challenges, Classic Sonic has to "juggle" the Goal Post to a certain area in the stage. This could be a reference to the functions of the Goal Post in Sonic 3 & Knuckles, as you can juggle the Goal Post in the air for as long as you can after it falls from the sky in Act 1 of each stage.
  • One of Classic Sonic's idle animations, where he points ahead of the stage, comes from this game.
    • When facing backwards, this idle animation changes to have Classic Sonic point behind him, instead of reusing the same animation as in the original.

Sonic the Hedgehog Triple Trouble:

Sonic 3D Blast:

  • One of Classic Sonic's idle animations, where he crosses his arms and quickly taps his foot, is based on Sonic's idle animation from this game.

Sonic Adventure:

  • The "Finish" pose for Modern Sonic's Freestyle Tricks is a reference to the pose he does on the front cover of the original Dreamcast version of the game.
  • In a mission in which Classic Sonic races Amy in Sky Sanctuary, Amy races by twirling her hammer around in her hands. This seems to reference her Spin Hammer Attack move from this game.
  • Classic Sonic's skateboard has a similar design to the one from one of Sonic's artworks from this game.
  • Just as an orca chased Sonic in the original Emerald Coast and its 3DS remake, a giant Chopper chased Sonic in the console remake of Green Hill.
  • The tube waterslide in Chemical Plant works similarly to parts of Lost World.

Sonic Adventure 2:

  • The tube waterslide in Chemical Plant works similarly to the one at the end of Cannon's Core.
  • The cutscene before the fight with Shadow is almost an exact rendition of the opening cutscene from the GameCube version of this game.
  • In the 3DS version, Sonic races Shadow at Radical Highway as depicted in the introduction of Sonic Adventure 2 Battle.
  • After defeating the Biolizard, Sonic mentions that it was easy because he has fought it before, referencing the final battle of this game.
  • Omochao helps the player by giving tips in every level, except for the final boss fight, where Sonic's friends give tips to beat the boss.

Sonic Advance:

Sonic Battle:

  • In a mission in which Classic Sonic races Amy in Sky Sanctuary, Amy Races by twirling her hammer around in her hands. This seems to reference one of her attacks from the game.

Sonic Advance 3:

  • In the Amy Co-op Mission in Chemical Plant, she uses her hammer to send up Sonic in the air. This was her partner ability in Sonic Advance 3.
  • Sonic is able to call his friends to help him out with their special abilities in some of the missions. He was able to call them in Sonic Advance 3 as well.
  • In the final battle (HD version), Sonic is able to throw his partner as a projectile to the Time Eater. This feature comes from the final battle of Sonic Advance 3.
  • The fireworks that Classic Sonic uses at the end of Classic Tropical Resort are similar to the rockets in Toy Kingdom.
    • The way the Sonics bounce on the balloons in Tropical Resort is similar to how Sonic and friends did in Toy Kingdom.
  • The Spinning Tops in Sky Sanctuary Zone are references to the Spinning Tops in Chaos Angel (in terms of design, not functionality).

Sonic Heroes:

  • The giant propellers from the second act of Mushroom Hill are similar to the ones from Frog Forest and Egg Fleet.
  • The giant "Egg Wheels" from Casino Night look similar to the roulette from Casino Park.
  • The special stages are re-imagined versions of the ones from this game.
  • In a mission in which Classic Sonic races Amy in Sky Sanctuary, Amy Races by twirling her hammer around in her hands. This seems to reference her Propeller Hammer move from this game.
  • The settings music is remixed from the character select screen theme of this game.

Sonic Rush:

  • The Freestyle Tricks Modern Sonic can perform are similar to the ones from this game. They give him boost energy, just like in Sonic Rush.
  • Blaze is seen talking to Cream in Sonic's party, a reference to their friendship from this game.
  • In the 3DS version, when Modern Sonic's boost gauge is completely full, it changes color and lets Sonic boost as much as he wants until it goes back to normal. This is similar to how the Tension Gauge worked in Rush.
  • In the final battle (3DS version), only one Eggman is controlling the Time Eater while facing one of the Sonics. If the Time Eater gets hit, they go through a portal and switch the Eggman who is controlling it, as well as the Sonic who is facing it. This is a reference to the final battle of this game.
  • In the final battle (HD version) the Sonics combine their powers and start rotating in a circle to deliver the final blow. This is how the final battle of this game ended.
  • Each Sonic having their own remix of the stage theme is just like how Blaze and Sonic both had their own remix of each stages theme in this game.

Sonic Rush Adventure:

  • Blaze mentions that there are rings similar to Red Rings in her dimension.
  • The dolphins who help Modern Sonic in Emerald Coast are similar to the ones from Pirates' Island.
  • The water cannons from Water Palace Act 1 are similar to the ones from Pirates' Island.
  • The combo finisher Modern Sonic can perform originated from this game.
  • The treasure chest from the 3DS version's collection room is the same treasure chest that appeared at the end of every act of this game.

Sonic the Hedgehog (2006):

  • The black holes that appear in the 3DS version's Versus Mode are similar to the ones from End of the World.

Sonic Rivals:

  • Modern Sonic's stages in the 3DS version are in 2.5D, with gameplay on the 2D plane but with dynamic camera angles. In the console version, 2.5D is prominently featured in Classic Sonic's stages. This technique first appeared in Sonic Rivals.
  • The rivals in the 3DS version are designed in a similar way to the rival races from this game.
  • The three rivals in Sonic Generations were also part of Sonic's rivals from this game.

Sonic Rivals 2:

  • The models of Knuckles, Shadow and Silver in the 3DS version's collection room are based off their artwork from this game.

Super Smash Bros. Brawl:

  • If the player gets a "B" ranking as Classic Sonic, he will strike a pose that resembles Sonic's render pose from Super Smash Bros. Brawl.

Sonic Riders: Zero Gravity:

  • The tube waterslide in Chemical Plant works similarly to the one during Aquatic Capital.
  • The texture of Sky Sanctuary Act 2 strongly resembles Astral Babylon.

Sonic and the Secret Rings:

  • In a cutscene, Modern Sonic mentions "Rescuing genies in magic books."
  • The skill system is similar to the ring system from this game.
  • The Time Break ability in Sonic Generations is very similar to the Time Break in this game, where it originated from.

Sonic Chronicles: The Dark Brotherhood:

  • If the player saves Rouge the Bat in City Escape as Modern Sonic, she will refer to him as "Big Blue," which was her nickname for Sonic in Sonic Chronicles: The Dark Brotherhood.

Mario & Sonic at the Olympic Winter Games

  • If the player gets a B rank with Modern Sonic, he'll do one of the poses of his artwork from this game.

Sonic Unleashed:

  • The skydiving tunnels in Modern Chemical Plant and the Egg Dragoon boss are a reference to the original Rooftop Run and Eggmanland stages.
  • There is a cylinder-climbing section in Crisis City that works like Mazuri's tree section, in which the player needs to climb the right platforms to continue on, otherwise they may find themselves stuck in an endless loop.
  • In both acts of Rooftop Run, the flags of all the nations Sonic visited in Unleashed are visible at some point.
  • The village in the background of Water Palace looks similar to Apotos.
  • After Modern Sonic gets out of a water slide in Water Palace, he begins to surf, referencing that he was able to do that in the Wii/PS2 version of this game.
  • Modern Sonic obtains the Stomping Shoes at some point in the 3DS version instead of having it from the beginning, just like in this the PS3/Xbox 360 version of this game while on the other hand, Modern Sonic already starts with all of his abilities in the console version of Sonic Generations, just like in the Wii/PS2 version of this game.
  • Modern Sonic's standard pose in the cutscenes from the 3DS version comes from the artwork of this game.
  • In the final battle (3DS version), the Time Eater throws energy balls at Modern Super Sonic. If they hit him, they will stun him for a few seconds. Perfect Dark Gaia had this ability in the Wii/PS2 version which could be deflected back at it.
    • Also in the final battle in the 3DS version, the Sonics boost directly at the Time Eater to deliver the final blow. This is how the final battle of this game ended.
  • Modern Sonic enters Casino Night falling from the sky, just like he did in every daytime stage in the Wii/PS2 version of this game.
  • Wentos' Chao puppets are seen hanging in the Skill Shop.
  • The HD version of this game uses the Homing Attack lock on icon from this game.

Sonic Colors:

  • As well as mentioning genies and magic books, Modern Sonic also mentions "saving aliens in an interstellar amusement park" in the same cutscene.
  • Silver appearing in Tropical Resort is also a reference to the DS version of the game, since he was wandering around the park with Blaze in that game.
  • The face of the Time Eater before being revealed has a similar look to the Violet Wisp.
  • Near the end of Modern Rooftop Run, the Battery Blimp attacks in the same way as the Frigate Orcan and Skullian except it can't be destroyed. However, it leaves a trail of rings after it takes enough hits, just like both bosses did in Sonic Colors.
  • In the 3DS version of Sonic Generations, Tails gave hints to the Sonics instead of Omochao. Throughout this game whenever the player activates a hint, Tails would give him the advice.
  • The 3DS version of the game uses the Homing Attack target lock icon from this game.

Sonic Channel:

  • If the player gets an A rank with Modern Sonic, he'll do one of the many poses that he has in Sonic Channel.
  • Most of the statues in both versions are based off the character artwork from here.
  • In the 3DS version, the "Favorite Character" section on the Profile Card option uses artwork from Sonic Channel.


These are the achievements and trophies for the Xbox 360, PlayStation 3 and Steam versions of Sonic Generations.

Icon Name Description Trophy Class Xbox Live Gamescore
All Stages Cleared!.png All Trophies Collected! Collect all Trophies.
PSN Trophy Platinum.png
The Opening Act.png The Opening Act Race through the first stage.
PSN Trophy Bronze.png
SG achievement GREEN HILL Restored!.png GREEN HILL Restored! Restore the GREEN HILL Stage Gate.
PSN Trophy Bronze.png
SG achievement CHEMICAL PLANT Restored!.png CHEMICAL PLANT Restored! Restore the CHEMICAL PLANT Stage Gate.
PSN Trophy Bronze.png
SG achievement SKY SANCTUARY Restored!.png SKY SANCTUARY Restored! Restore the SKY SANCTUARY Stage Gate.
PSN Trophy Bronze.png
SG achievement SPEED HIGHWAY Restored!.png SPEED HIGHWAY Restored! Restore the SPEED HIGHWAY Stage Gate.
PSN Trophy Bronze.png
SG achievement CITY ESCAPE Restored!.png CITY ESCAPE Restored! Restore the CITY ESCAPE Stage Gate.
PSN Trophy Bronze.png
SG achievement SEASIDE HILL Restored!.png SEASIDE HILL Restored! Restore the SEASIDE HILL Stage Gate.
PSN Trophy Bronze.png
CRISIS CITY Restored!.png CRISIS CITY Restored! Restore the CRISIS CITY Stage Gate.
PSN Trophy Bronze.png
ROOFTOP RUN Restored!.png ROOFTOP RUN Restored! Restore the ROOFTOP RUN Stage Gate.
PSN Trophy Bronze.png
PLANET WISP Restored!.png PLANET WISP Restored! Restore the PLANET WISP Stage Gate.
PSN Trophy Bronze.png
SG achievement Sunny Side Up.png Sunny Side Up Defeat Death Egg Robot.
PSN Trophy Bronze.png
Perfect Punisher.png Perfect Punisher Defeat Perfect Chaos.
PSN Trophy Bronze.png
SG achievement Boom Boom Dragoon.png Boom Boom Dragoon Defeat Egg Dragoon.
PSN Trophy Bronze.png
Scrap Metal.png Scrap Metal Defeat Metal Sonic.
PSN Trophy Bronze.png
Shadow Boxing.png Shadow Boxing Defeat Shadow.
PSN Trophy Bronze.png
Silver Got Served.png Silver Got Served Defeat Silver.
PSN Trophy Bronze.png
Treasure Hunter.png Treasure Hunter Collect all the Chaos Emeralds.
PSN Trophy Bronze.png
Game cleared.png All Stages Cleared! Clear Sonic Generations.
PSN Trophy Silver.png
Greased Lightning.png Greased Lightning Clear Green Hill Zone Act 1 within one minute.
PSN Trophy Bronze.png
Bright Star.png Bright Star Get Rank S in an Act.
PSN Trophy Bronze.png
Shooting Star.png Shooting Star Get Rank S in three Acts.
PSN Trophy Bronze.png
Blazing Meteor.png Blazing Meteor Get Rank S in seven Acts.
PSN Trophy Silver.png
Blue Comet.png Blue Comet Get Rank S in twelve Acts.
PSN Trophy Silver.png
Big Bang SG.png Big Bang Get Rank S in all Acts.
PSN Trophy Gold.png
Trickstar.png Trickstar Pull off a seven or more trick combo or six trick combo ending in a finishing trick.
PSN Trophy Bronze.png
Eradicator.png Eradicator Defeat 100 enemies.
PSN Trophy Bronze.png
Ring King.png Ring King Reach the goal without dropping any of the rings you collected in Green Hill Zone Act 1.
PSN Trophy Bronze.png
Action Hero.png Action Hero Perform all of Sonic's moves in act 2.
PSN Trophy Bronze.png
SG achievement Can't Touch This.png Can't Touch This Defeat the Time Eater without getting hit.
PSN Trophy Silver.png
Bonds of Friendship.png Bonds of Friendship Complete all Challenge Acts featuring Sonic's friends.
PSN Trophy Bronze.png
Walkie Talkie.png Walkie Talkie Chat with each of Sonic's friends you have saved.
PSN Trophy Bronze.png
Join the Ranks.png Join the Ranks Join the rankings.
PSN Trophy Bronze.png
A 30-Second Test.png A 30-Second Test Participate in a 30 Second Trial.
PSN Trophy Bronze.png
SG achievement Jump for Joy!.png Jump for Joy! Find the spring hidden in GREEN HILL Act 1 and reach the goal with a Red Star Ring.
PSN Trophy Bronze.png
SG achievement Walk on Water.png Walk on Water Cleared CHEMICAL PLANT Act 2 without entering the water.
PSN Trophy Bronze.png
SG achievement Walk on Air.png Walk on Air Cleared SKY SANCTUARY Act 1 without falling and losing a life.
PSN Trophy Bronze.png
SG achievement Byway or the Highway.png Byway or the Highway Get the Red Star Ring located on the shortcut route in SPEED HIGHWAY Act 2 and reach the goal.
PSN Trophy Bronze.png
SG achievement Demolition Derby.png Demolition Derby Wrecked 30 or more cars in CITY ESCAPE Act 2.
PSN Trophy Bronze.png
SG achievement Secret Sleuth.png Secret Sleuth Get the Red Star Ring located in the hidden room in SEASIDE HILL Act 1 and reach the goal.
PSN Trophy Bronze.png
Look Both Ways.png Look Both Ways Reached the goal in CRISIS CITY Act 2 without being hit by tornado-carried cars or rocks.
PSN Trophy Bronze.png
A Quick Breather.png A Quick Breather Get the Red Star Ring atop the highest spot in ROOFTOP RUN Act 2 and reach the goal.
PSN Trophy Bronze.png
SG achievement Color Power!.png Color Power! Get the Red Star Ring by using an Orange Wisp in PLANET WISP Act 2 and reach the goal.
PSN Trophy Bronze.png
Super Sonic!.png Supersonic! Cleared a regular stage as Super Sonic.
PSN Trophy Silver.png
Mad Skillz.png Mad Skillz Get all Skills from the Omochao shop.
PSN Trophy Silver.png
HedgeHogging It All Up!.png (Hedge)Hogging It All Up! Get all collectibles.
PSN Trophy Gold.png
Time Attacker.png Time Attacker Play Ranking Attack on all stages.
PSN Trophy Silver.png
Red Ring Collector.png Red Ring Collector Get all Red Star Rings.
PSN Trophy Silver.png
Halfway Point.png Halfway Point Clear half the Challenge Acts.
PSN Trophy Silver.png
Mission Accomplished!.png Mission Accomplished! Clear all the Challenge Acts.
PSN Trophy Silver.png

System Requirements (PC)


OS Processor Memory Graphics DirectX® Hard Drive Sound
OSSNNONLY2.png Intel Pentium Dual-Core T4200 (2x2.0 GHz) or AMD equivalent 2GB RAM (XP)/3GB RAM (Windows 7 / Vista) NVIDIA GeForce 8800 (512MB) / ATI Radeon HD 2900 (512MB) ________ 11.0 GB free hard drive space ________


OS Processor Memory Graphics DirectX® Hard Drive Sound
Windows-7-logo.png Intel Core i5 @ 2.66 GHz / AMD Phenom II X4 @ 3.0 GHz 3GB RAM NVIDIA GeForce GTX 460 (1GB) / ATI Radeon HD 5850 (1GB) _______ 11 GB free hard drive space _______


Aggregate scores
Aggregator Score
GameRankings (PS3) 79.29%[21]
(X360) 78.67%[22]
(PC) 78.43%[23]
(3DS) 69.50%[24]
Metacritic (X360) 77/100[25]
(PC) 77/100[26]
(PS3) 76/100[27]
(3DS) 66/100[28]
Review scores
Publication Score B[29]
Edge 5/10[30]
Eurogamer (Italy) 8/10[26]
(UK) 7/10[31]
Famitsu 35/40[32]
G4 4/5[33]
Game Informer 6.75/10[34]
GamePro ★★★★☆[35]
GamesMaster 84%[21]
GameSpot 8.0/10[36]
GameSpy ★★★★☆[26]
GamesRadar (X360/PS3/PC) 8/10[37]
(3DS) 7/10[24]
GamesTM 7/10[38]
GameTrailers 8.1/10[39]
GameZone 9.0/10[40]
IGN (X360/PS3/PC) 8.5/10[41]
(3DS) 7/10[42]
Nintendo World Report 8.5/10[43]
ONM 85%[44]
OPM (US) 8/10[21]
OPM (UK) 8/10[21]
PALGN 9.5/10[45]
TeamXbox 8/10[46]
Empire ★★★★☆[47]
Publication Award
GameZone Best Presentation[48]
IGN Editor's Choice[41]
Nintendo Power Best Retro Revival[49]

Sonic Generations has sold nearly over 3 million copies worldwide as of April 30, 2014,[50] making it the fifth best selling Sonic game to date, behind Sonic the Hedgehog (over 4 million), Sonic Unleashed (also over 4 million), Sonic the Hedgehog 2 (over 6 million), and Sonic Heroes (also over 6 million).

The console and PC versions received generally positive reviews. Aggregating review websites GameRankings and Metacritic gave the PlayStation 3 version 79.29% and 76/100,[21][27] the Xbox 360 version 78.67% and 77/100,[22][25] and the PC version 78.43% and 77/100.[23][26] IGN gave the game a score 8.5 out of 10 and an Editor's Choice award, praising the overall gameplay and the level design, while criticising some occasional control issues and limited boss battles.[41] Computer and Video Games gave it a 7.5/10, praising the balanced design but criticizing the frame rate of the graphics.[51] gave the game a "B" score, praising its variety, fun-to-play levels and interesting set-pieces, while criticizing some on-rails sections and occasional framerate drops.[29]

PlayStation Official Magazine gave it an 8/10, calling it "a masterpiece of platform game design."[52] GameTrailers gave the game a score of 8.1, calling it "the best Sonic game in over a decade."[39] GamesRadar gave the console version 8/10, calling it "the best Sonic game since Sonic 2,"[37] while they gave the 3DS version 7/10, praising its level design and optional missions but criticizing its short length as well as the fact that modern Sonic is restricted to a 2D plane of movement.[24] Eurogamer, however, was less enthusiastic, writing that "Sonic Generations still doesn't do much to dissuade us that the hedgehog's best days are distant memories, but at least it is a worthy tribute to them."[31] The most positive review on Metacritic is a 9.5/10 from PALGN, which argues that the game is significantly better than Sonic Unleashed, Sonic Colors, and Sonic the Hedgehog 4.[45] Game Informer's Tim Turi was more critical of the game, criticizing Sega for "...shoehorning recent Sonic games, no matter how awful, into the 20-year timeline." He felt that such stages served "...only to remind you of how far the series has fallen from its original form."[34] Famitsu praised the speed and addictiveness of the gameplay as well as the bonus material, while emphasizing that "you do need a certain amount of ability to play it the way it was meant."[32] Empire gave the game 4/5 stars, saying "Generations is a nostalgic joy that captures the dizzying speed and psychotic pace that made Sonic's original romps console classics."[47] GameSpot's Nathan Meunier praised Generations for its "impressive level designs," "gorgeous" visuals, "epic boss encounters," and high replay value.[36]

Reception to the 3DS version was slightly less positive. GameRankings and Metacritic gave the game 69.50% and 66/100.[24][28] Official Nintendo Magazine gave the 3DS version a score of 85%, calling the game "hugely rewarding" for "high-score chasers" but did comment on the main game's short length. However, it concluded that the game was "an essential purchase for Sonic fans."[44] GamingXP gave the 3DS version 84 out of 100, stating "Sonic's debut on Nintendo's 3DS is a real success. The combination of the two different hedgehogs in the colorful 2D and 3D environments is pretty cool. The game is a little too easy, but there's tons of Sonic flair and enough content to truly satisfy the player."[53] IGN was slightly more mixed when reviewing the 3DS version, giving 7 out of 10, commenting that "Whereas the console version of Sonic Generations is a blending of old and new mentality in a fast-paced speed fest, the 3DS version is mostly just a Sonic Rush game where both playable characters happen to be Sonic." Game Informer gave the 3DS version 58 out of 100, calling the platformer's level design sloppy, making the whole product feel like a rushed tie-in with the console version". There was however praise for the game's music, 3D visuals, special stages and simple fun levels.[54]

Nintendo Power magazine editors gave Sonic Generations 3DS the "Best Retro Revival" award for the Nintendo Power 2011 Awards.[49]


Archie Comics produced a video game tie-in for Sonic Generations in Sonic the Hedgehog Issue 230.

A short manga for Sonic Generations was released in Japan. It is presented in a similar format as the Sonic World Adventure manga and the Sonic Colors manga.


  • The internet poll asking fans what their favorite stages from each mainline Sonic game were also listed stages from Sonic and the Secret Rings and Sonic and the Black Knight, suggesting that at one point in development, stages from both games were meant to appear in Sonic Generations but were scrapped later on.
    • Because Sonic Colors was not announced yet at the time the poll was released, none of its stages appeared in the poll.
  • There are some differences between the console and the PC version of Sonic Generations. First of all, the PC version has more shadows and the colors are slightly less vibrant than on the console version. The maximum framerate for the PC is 60 FPS while it is locked to 30 FPS on consoles. The loading times are also greatly decreased in the PC version, and the PC version lack the Sega Genesis Controller.
    • However, the Genesis version of Sonic the Hedgehog runs at 60 FPS in the console version.
    • Also, in the PC version, all cutscenes, including boss intro cutscenes and boss outro cutscenes as well as the Saving A Friend cutscenes, are locked at 30 FPS.
    • In the PS3 version, Motion Blur was disabled.
  • This is the first Sonic game for the Nintendo 3DS.
  • The textures for Planet Wisp's environment map are actually screenshots of the team's dev program.
  • This is the first Sonic game to have stereoscopic 3D capability.
  • The 3DS version is the first handheld Sonic game on a Nintendo console that features fully rendered 3D stages and dynamic camera angles.
  • All Challenges against friends in the first era are races.
    • Tails is the only character who races against Modern Sonic. Knuckles and Amy race against Classic Sonic.
  • This is the first 3D Sonic game not to have a unique theme song.
  • Classic Tails' artwork seems to have "buckles" under his socks (above his shoes).
  • Like Sonic Unleashed (Wii/PS2), while using the Boost on a Dash Panel, Sonic performs a spin dash animation. In the 3DS version, he spins simply from touching Dash Panels regardless of initial speed and can defeat enemies during the roll.
  • In both Sonic & Knuckles and Sonic Generations, the Death Egg can be seen in the background of Sky Sanctuary. In Sonic & Knuckles, the next level is Death Egg Zone, and in Sonic Generations, the next level is the fight against the Death Egg Robot, which coincidentally takes place in Death Egg.
  • This is the first time Modern Sonic gets Boost Energy from both Rings and Enemy Power in a handheld console.
  • The HD versions have a white colored design on top and bottom, where as the 3DS version has a blue design. Likewise, the HD and 3DS' version's Japanese names are "White Time and Space" (HD) and "Blue Adventures" (3DS).
  • The rivals in this game appeared as playable characters in Sonic Rivals.
    • Knuckles is the only rival from Sonic Rivals that is a friend in Sonic Generations, as the others are all rivals that battle Sonic.
  • In the HD version, the drowning countdown starts at 4 instead of 5 ,although a different tone is played before the countdown starts. Underwater warning beeps are much more prominent in the console version. In the 3DS version however, the countdown starts from the traditional 5.
  • Neither of Speed Highway's main acts include the At Dawn Section from Sonic Adventure. However, one Challenge Act with Cream shows the stage at dawn.
  • The second era is the only era in which Dr. Eggman is not a boss.
  • In the E3 demo of Green Hill Act 2 (when the game was in early development), at the beginning of the stage, Sonic said "Ready?...Go!", while in the final product, he doesn't.
  • If a ring item box is destroyed in the HD version, the sound when the player gets a Ring sounds ten times instead of one. In the 3DS version however, it only just sounds once.
  • After Sonic saves Tails, he makes a reference, saying that the stage was "awfully familiar," followed by Tails saying that he doesn't recognize the stage at all. This most likely references the fact that Green Hill Zone is a Sonic 1 stage, and Tails was introduced in Sonic 2. Yet in Sonic Chronicles: The Dark Brotherhood, Tails recognizes Green Hill Zone.
  • This is the second 3D Sonic game where Eggman is the final boss.
  • Out of all 9 main stages, 3 of the stages are based on the first levels of their respective games (Green Hill, City Escape and Seaside Hill). The 3DS Version has Green Hill, Emerald Coast and Tropical Resort (Mushroom Hill is technically a first stage as well though not in the complete Sonic 3 & Knuckles). To a lesser extent, Crisis City is also considered a starting level (but in the case of Silver, and not Sonic) and Speed Highway (Knuckles' first level). It can also be said that Radical Highway is a first level of sorts due to being Shadow's first level in Sonic Adventure 2.
  • This is the second main 3D game to have someone (Classic Tails, specifically) call Dr. Eggman the name "Dr. Robotnik," the first being Sonic Adventure, which was the game where Eggman got his nickname.
  • Classic Metal Sonic's artwork pose is similar to Shadow's.
  • This is the second 3D Sonic game in which the player starts a new game and are taken to the first stage, rather than showing the cutscene first. The first game is Sonic Colors.
  • In the 3DS version, Classic Tails suddenly appears after the boss battle with the Death Egg Robot/Big Arm. Takashi Iizuka said that there was going to be an explanation but it never got worked into the game's story, and he wanted to leave it open to the fan's opinion.
  • "History of the 1st Stage: White Edition" and "History of the 1st Stage: Blue Edition" are the Japanese Pre-order bonuses for the HD and 3DS versions respectively, not the soundtrack as originally thought. They are both disks with separate soundtracks that consist of music from the first stage of the franchise.[55]
  • Coincidentally, Shadow's line from his own game, "Where is that damn fourth Chaos Emerald?" is also referenced, as he has the fourth Chaos Emerald of the game.
  • Takashi Iizuka said that three original taglines for the game were "Blast with the past," "Déjà Blue," and "A speedy trip down memory lane."
  • While the HD version has a level from Sonic Heroes as part of the second era (Seaside Hill), the 3DS version has a stage from it part of the third era (Egg Emperor). In the 3DS version, Heroes' stage representation is spread throughout the eras as the game's Special Stages.
  • With the exception of the Egg Dragoon, all of the bosses in the HD version can only take half the amount of hits the 3DS version's bosses can (4 in the HD version, 8 in the 3DS version).
  • When playing the original Sonic the Hedgehog on the Sega Genesis, a top score and top time can be recorded. However, the player must finish the game to save said data.
  • In the HD version, the first is the only era without a city level, while in the 3DS version the third era is the one without a city level.
  • The HD version of the game had the highway stage of Sonic Adventure, and the first stage of Sonic Adventure 2. The 3DS version is the opposite; it has the first stage of Sonic Adventure, and the highway stage of Sonic Adventure 2.
  • In the hub world, Sky Sanctuary has trees with grapes in them. Knuckles' favorite food is stated to be grapes in the Sonic the Hedgehog 3 manual, and Sky Sanctuary is also where Knuckles is saved in Sonic Generations.
  • When an S rank is achieved on one of the levels or bosses in the HD version, the text color of the title of it turns Golden.
  • In the HD version, the unlockable music list has slight remixes of the Classic Sonic songs (Mainly Sonic the Hedgehog 3 and Sonic & Knuckles).
  • After a stage is restored in the HD version, on the levels background noises can be heard, faint from the background music. This is easily heard when muting the music:
    • Green Hill, sounds of the waterfalls and birdsong are heard
    • Chemical Plant, sounds of construction are heard. Considering the fact that the plant was heavily damaged in the modern stage, this is probably reconstruction.
    • Sky Sanctuary, loud birdsong is heard
    • Speed Highway, moving, honking cars are heard.
    • City Escape, crowds talking are heard
    • Seaside Hill, sounds of a beach are heard
    • Crisis City, sounds of volcanic explosions are heard
    • Rooftop Run, faint crowds are heard.
    • Planet Wisp, a mix of birdsong and construction is heard.
  • In the HD version, the Death Egg Robot is the only boss originally fought by Sonic as himself, Perfect Chaos was fought by Super Sonic and the Egg Dragoon was fought by the Werehog.
  • Classic Sonic, in his super form, retains his black eyes (like in Sonic 2) instead of changing to the blue-green eyes from Sonic 3 & Knuckles.
  • On the HD version, Classic Sonic and Modern Sonic fight each rival (Classic Metal Sonic, Shadow the Hedgehog, minus Silver the Hedgehog) in the areas he fought them in the original games, but the 3DS version has Sonic fight them in areas he didn't fight them in the original.
  • This is the second game to use skill customization, the first being Sonic and the Secret Rings.
  • The launch trailer for the 3DS version has a small mistake. During the Modern gameplay showcase, a clip from Classic Water Palace is shown.
  • The 3DS version is to date the third game to feature monitors (instead of capsules or nothing) in Modern Sonic's stages. The first game was Sonic Pocket Adventure.
  • Both City Escape and Radical Highway are the first stages for both Sonic and Shadow in Sonic Adventure 2 respectively. Both stages represented the second era.
  • In the console and PC versions, it takes about five seconds for Classic Sonic to get impatient and 35 to lay on the ground. However, in the 3DS version, it takes 30 seconds for him to get impatient and a whole minute to lay down.
  • This is the first modern Sonic game on a handheld Nintendo system not to have Boost Mode. It is also the first where boosting through enemies is "seamless," not causing a split-second pause like in Sonic Unleashed (Wii/PS2) or the DS games.
  • In the HD version, Omochao works as a guide by advising the Sonics, while in the 3DS version, Tails is the one giving advice (Classic Tails to Classic Sonic and Modern Tails to Modern Sonic).
  • In the 3DS version, Classic Sonic's model becomes shinier when the player turns on the 3D effect.
  • Orcas appeared in both versions of the game, in Seaside Hill (360/PS3/PC) and Emerald Coast (3DS).
  • In the 3DS version, if Sonic gets a standard shield while having a Thunder one equipped, he will keep the Thunder shield instead of switching to the standard one.
  • In the HD version of the game, Silver and Shadow do not appear at Sonic's birthday party at the beginning of the game, but show up for the party at the end of the game.
  • All the rivals are hedgehogs or robotic copies of hedgehogs.
  • Even if the player lives in North America, the PC version downloadable from Steam is based on the PAL version. This is confirmed due to "Colors" being spelled "Colours."
  • In the Unlockable Songs list, Hydrocity Zone is spelled "Hydro City Zone" instead.
  • Silver is the only rival or boss that is never faced at his original location in either version of the game. (Silver is fought in Crisis City in the console versions, and Tropical Resort in the 3DS version.)
  • Sonic Generations can be considered similar to Sonic 06, mainly since there is a creature (Sonic 06 had Solaris, while Generations had Time Eater) that devours time and the events of the game were erased in both games. Coincidentally, both are anniversary games.
  • In the 3DS version, many of the levels are direct remakes of previous acts. For example, Classic Sonic's Act of Green Hill, Casino Night and Mushroom Hill are taken straight from Act 1 of their respective games. Modern Sonic's Water Palace also resembles Act 1 of its counterpart in Sonic Rush, and Classic Sonic's Tropical Resort is a reconstruction of Act 1 of the DS Sonic Colors.
  • During the credits, the original levels from each game play along with the music medley as a tribute to the original games. In the HD version, the following game versions were used: the original Japanese Sonic Adventure release on Dreamcast, Sonic Adventure 2 Battle on GameCube, the PC version of Sonic Heroes, the PS3 versions of Sonic the Hedgehog (2006) and Sonic Unleashed, and the Wii version of Sonic Colors. There are no obvious indications if the Genesis/Mega Drive games are originals or direct emulations (or even Sonic Jam). Oddly enough, even though the credits use the revised Japanese version of the original Sonic the Hedgehog, the unlockable emulation in console versions is the original American release.
  • Sonic Generations was held on a 66% discount on Steam via PC Download as a Daily Deal due to the large amount of downloads.[56]
  • In Sonic the Hedgehog 2, Chemical Plant is the second stage, in this game, coincidentally, Chemical Plant is the second stage.
  • In the Collection Room, two of the cutscenes you can view are both named Eggman Abducted, both being the cutscene after beating the Death Egg Robot and the Egg Dragoon.
  • Time Eater being initially believed to be the main antagonist only for Eggman to reveal himself as the true main antagonist near the end is a reverse twist to most 3D Sonic games; in which Eggman is initially believed to be the villain only for another enemy to be revealed as the true enemy towards the end.
  • When modern Sonic says "No stranger then rescuing genies and magic books or saving aliens in a interstellar amusement park," he is referring to Sonic and the Secret Rings and Sonic Colors respectively.
  • Eggman Nega is the one of the series' main characters to be completely absent, not even having a mentioning or reference.
  • In the HD version, the rival and boss battle of the second era mainly used the Boost throughout the fight which was introduced in the third era (Sonic Unleashed).
  • Not long before the release date of Sonic Generations, Sega sponsored a skateboarding sporting event that took place in Venice Beach of California named "Sonic Generations of Skate."
  • The game also shows how Sonic's skills are improving, showing his previous way of taking only slightly difficult routes (Classic Sonic), and then showing how he now goes through the truly difficult ways of the Act (Modern Sonic).
  • Four of the levels were the first levels in their original games. Green Hill Zone, City Escape (Hero Story), Seaside Hill (every team except Team Rose) and Crisis City (Silver's Story)
  • The Silver the Hedgehog boss battle is the only recreated/reimagined boss in the game that wasn't based off a second-to-last or final boss. Metal Sonic, Egg Emperor, and the Egg Dragoon are boss battles that are second to last while the Death Egg Robot, Big Arm, Shadow the Hedgehog (Final boss of Hero story in Sonic Adventure 2), and Perfect Chaos are all final bosses to their story modes and games.
  • The HD version of Sonic Generations draws heavy inspiration from the 3DS version that it prominently has characters other than Sonic, Tails, Eggman and its in-game content is accessible via an in-game map much like the DS version of Sonic Colors.
    • Similarly, the 3DS version of Sonic Generations draws its inspiration from the Wii version of Sonic Colors in that the only characters prominent in the 3DS version is Sonic, Tails and Eggman and its in-game content is accessible by game menus much like the Wii version of Sonic Colors.
  • In the console version, when looking at the models on the character profiles, both Silver and Rouge strike the same poses.
  • If you view the entire White World in a 3D model viewer, if you zoom out and look around, the entire Crisis City level will be there.
  • On the HD version, in the cutscene were everyone is teleported back to their world, when Classic Sonic and Classic Tails go through the portal back in time, an image of Green Hill Zone is shown, even though Tails was never in Sonic the Hedgehog, which was when Green Hill Zone made its first appearance. Therefore, Tails would have disappeared, unless it was in after the time Sonic the Hedgehog 2.
  • When both Sonics transforms into Super Sonic, an instrumental remix of Sonic the Hedgehog 4: Episode I theme can be heard.
  • In the 3DS version, the main menu's music is the title screen from Sonic Mega Collection, and the White Space theme is the main menu theme from Sonic Heroes.
  • "Hedgehog Jam," a music track, sounds similar to the music played during the SpongeBob SquarePants episode "Jellyfish Jam"; the music that played during the dance scenes.
  • When booting up the PS3 version of this game, some of Sonic's sprites from Sonic the Hedgehog are used before the Sega motto loads up.
  • In the first demo, Sonic has a blue aura trail, similar to the one in Sonic Unleashed. However, for unknown reasons, Sonic Team inserted blocking codes to prevent the effect from occurring. A restored version was made, however.
  • The physics engine is actually a modified version of the Sonic Unleashed engine. Hacking into the game can restore properties found within Sonic Unleashed, including light shafts, motion blur, and directional shadows.
  • On July 14, 2015, Sega posted a video of the cutscene played before the final battle, adding in footage from a motivational speech video featuring actor Shia LaBeouf. That speech came from #INTRODUCTIONS.[57]
  • It should be noted that Classic Sonic's stages, are in fact 3D and the creators have just changed the in-game camera to be in 2D perspective. As such, the user can use glitches or modes to make the Camera in 3D back again.
  • On the 3DS version's Profile Card patterns, the screenshot used for "Sonic Unleashed" comes from the Wii version, not the HD version, modified to include a directional shadow.
  • This is the only Sonic game to have the Cyan Laser appear in a handheld game (the 3DS version) instead of appearing in both platforms.
  • In the "Ending" cutscene of the HD version, the dialogue between both Classic and Modern Tails is different between the English and Japanese scripts. In the English script, Classic Tails asks Modern Tails where Sonic puts all of his collected Rings. In the Japanese script however, Classic Tails asks his Modern self how he could add legs to Sonic's Tornado model.
  • Sonic Generations is the third main game to have all four hedgehog main characters presented (Sonic, Amy, Shadow and Silver). The others being Sonic the Hedgehog (2006), Sonic Rivals, the Nintendo DS version of Sonic Colors, Sonic Forces, and Team Sonic Racing.


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External links

Sonic Generations

Main article | Script (Console/PC, 3DS) | Staff (Console/PC, 3DS) | Glitches | Beta elements | Gallery
Sonic the Hedgehog console mainline games
Sonic the Hedgehog handheld games
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