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Sonic Forces (ソニックフォース Sonikku Fōsu?, lit. "Sonic Force") is a platform video game in the Sonic the Hedgehog series developed by Sonic Team and published by Sega. It was released on 7 November 2017 for PC, Nintendo Switch, PlayStation 4 and Xbox One. Sonic Forces follows Sonic the Hedgehog as he joins a resistance force against Dr. Eggman, who has taken over the world with the help of his army, henchmen and a mysterious new villain known as Infinite. The storyline of the game also ties with Sonic Mania.
The game marks the return of the collaboration between both Classic Sonic and Modern Sonic, along with their associated gameplay styles, since the twentieth anniversary game Sonic Generations (although it is not a sequel to any previous games). In addition, Sonic Forces also introduces a third gameplay mode featuring the "Avatar", the player's own created character. The game serves, along with Sonic Mania, as a “continuation” of Sonic’s 25th anniversary.
Sonic Forces has been in development since 2013, around the release of Sonic Lost World. The title was first mentioned at the Tokyo Joypolis Sonic 25th party on 25 June 2016 under the name "Project Sonic 2017". The game was developed by Sonic Team, the same team that had previously developed Sonic Colors and Sonic Generations, and was headed by Sonic series veteran Takashi Iizuka.
The idea for Sonic Forces was to bring back a modern 3D Sonic made by Sonic Team themselves, who had not engaged in such a project for a while. The goal was to give players the experience of a classic 3D Sonic game while also offering as much content as possible by including old fan-favorite characters and 2D gameplay experiences. Also, because Sonic Team had gotten a lot of feedback from people who wanted to create their own characters in the Sonic universe, they decided to implement the Avatar system so fans could both create their own original character and go on adventures with Sonic through them.
The first half of the game was produced by Iizuka, with Shun Nakamura stepping in when the game became more defined. Although the direction of the game was intended to be “Vs. Eggman”, the addition of colliding armies was added to the mix to make the game stand out. To make the game' story more serious, it was written so that 99% of the world had been conquered by Eggman. According to Nakamura, the team tried to make a detour from Sonic's normal streak of victories by adding an element of despair, namely by having Sonic rescue a world stuck in despair from Eggman's tyranny. Furthermore, the team sought to express character development through the Avatar, something which is difficult for Sonic, to add more fitting depth to the story. Also, according to Iizuka, the All-star cast in the game itself came as a result of the game's premise rather than the other way around.
The subtitle "Forces" was chosen because the word incorporates the themes of “power” and “army”. These words embody the main theme of the game, with two strong forces (Sonic and co. versus Eggman) facing off against one another in the game.
In terms of story, Sonic Team wanted to put Infinite in focus with a strong secondary main villain cast constantly interacting with him, which is something that has not been seen in the series before and would give the fan-favorite characters enough screentime. Also, the darker story approach for the game came as a product of the cast: when Sonic Team wanted the villains of the game to stand out as more threatening, dramatic and powerful, they needed a setting to emphasize the villainous activities going on and how Eggman is taking over the world, which led to the development of the darker world Sonic Forces takes place in. Sonic Team had also previously decided to exclude the classic mechanic that let the player recover dropped Rings as result of Sonic Mania; after having a game with the classic mechanics, Sonic Team wanted to make something new that fit the modern style of Sonic Forces and provided a balanced aspect to the game difficulty that fans of both Modern and Classic gameplay would enjoy. In the final version of the game, players are still able to recover dropped rings.
As the Nintendo Switch had not yet been revealed, the development team could not properly complete that version of Sonic Forces. After it had been revealed, they had still managed to create an algorithm so that the game could manage to run at 720p on the Switch version.
The game was announced at Sega's 25th anniversary of the series at San Diego Comic-Con on 22 July 2016, where it was announced alongside Sonic Mania. The presence of Classic and Modern Sonic led some journalists to believe it was a sequel to Sonic Generations, but Iizuka confirmed that it was not a sequel, but a new, stand-alone title. The game will be released for Nintendo Switch, PC, PlayStation 4 and Xbox One in late 2017.
During the Sonic live stream that was held in Japan due to the release of Sonic Boom: Fire & Ice, it was revealed that there will be a new character introduced in Sonic Forces, along with a new component of gameplay besides the regular 2D and 3D gameplay.
SXSW 2017 announced they would be hosting a second Sonic panel for this year’s event, set to reveal news about the upcoming Sonic Mania and Sonic Forces. The latest Nintendo Dream Magazine from Japan also revealed new information about Sonic Forces. The blurb stated that Dr. Eggman will be the main villain, that there will be no multiplayer features, and that the genre for the game is "adventure". Soon after, it was unveiled that the game will be an evolution of Sonic Colors and Sonic Generations and features a new game engine developed for this title called "Hedgehog Engine 2". An interview with Takashi Iizuka by Famitsu later revealed that "Boom Sonic" would not appear in the game and that the game's third character (who will be revealed at E3 2017) would be an "unexpected character" that plays a vital role in the story and "embodies the overall features of the game". On 16 May 2017 (a month earlier than planned), this third character turned out to be a character that the player can customize to their liking. At E3 2017, on 13 June 2017, Shadow the Hedgehog, Metal Sonic, Zavok, and Chaos were confirmed to return to Sonic Forces as Dr. Eggman's henchmen under the leadership of a new and mysterious villain called Infinite. Soon after, Chao were stated not to be featured in the game, though they do make cameos as decorative gear for the Avatar.
At Gamescom 2017, Sonic Forces appeared with new demos that featured a new type of level for the game called "Tag Team Stages" where Modern Sonic and the player's Avatar work together in collaborative gameplay. On 31 August 2017, it was announced on the official twitter feed of Sonic that the game will arrive on 7 November 2017 on all platforms. A physical bonus edition of the game with extra features was also announced to be available for pre-order for consoles.
It was later announced that Sonic Forces would be showcased on Tokyo Game Show 2017, where limited game-related merchandise would be handed out to the attendees. At said event, Takashi Iizuka revealed that the storyline of Sonic Forces ties into Sonic Mania. It was also announced at TGS that Sonic Forces would have a cross-promotion with Hooters Japan and Hatsune Miku: Project DIVA Future Tone DX. Also, on 19 September 2017, a DLC named "Episode Shadow" featuring Shadow as a playable character was announced.
A demo for Sonic Forces was released on 25 October 2017 in Japan for PlayStation 4 and the Nintendo Switch. Three stages were made available: Green Hill Zone with Modern Sonic, Space Port with the Avatar and the Egg Dragoon boss fight as Classic Sonic. Players were only given sixty seconds play-time on each stage.
Sonic Forces has the primary themes of "forces", "power", and "teamwork". Making yet another gab for global domination, Dr. Eggman launches a large scale offensive on an urban center with his Death Egg Robot sentinels and Egg Pawns. As things gets desperate for the survivors and all hope seems lost, Sonic the Hedgehog appears and makes short work of the remaining forces. However, Dr. Eggman has a surprise up his sleeve.
Sonic soon finds himself face to face with a troop of much tougher enemies which consist of none other than Shadow, Metal Sonic, Zavok, and Chaos, who are now serving as Eggman's henchmen once more and are ready to create more next-level panic and disorder. Among them is also a newcomer: an enigmatic and powerful being named Infinite, who has provided Eggman with a new power and now serves as his right-hand man. Wielding a mysterious power, Infinite proves too much for Sonic, who is defeated and captured by the unknown assailant. After that, Sonic disappears into thin air, his present status unknown, with his best friend Tails losing contact with him.
With Infinite's power and no Sonic to oppose him, Dr. Eggman manages to conquer 99% of the planet in a matter of a few short months, resulting in his army controlling that much of the world. Acting on Eggman's behalf, Shadow, Metal Sonic, Chaos and Zavok easily conquer one territory after another. Meanwhile, Infinite has become the leader of Eggman's entire army. With Eggman out to crush the remaining opposition, multiple forces are now embroiled in conflict for the control of the planet.
Sonic’s disappearance was shocking news to everyone. Sonic’s friends, who managed to escape Eggman’s invasion, decide to fight back by forming the rag-tag “Resistance” army, with Knuckles the Echidna as the commander. Joining the Resistance is an active newcomer from a district of survivors that got attacked by Dr. Eggman’s army. This rookie has decided to answer the call and fight to get the world back. As the Eggman Empire's armies lay waste to entire cities, Sonic returns and joins up with the Resistance. Classic Sonic, Sonic's counterpart from another dimension, also appears, having been brought to Sonic's dimension by the same power Eggman used to conquer the world. Now, with the aid of his friends, the resistance rookie, and Classic Sonic, Sonic embarks on a mission to save the world and end the evil reign of the diabolical doctor and his forces. However, time grows short for Sonic, as the Resistance only has three days before Eggman unleashes a plan that will eradicate all his foes.
Sonic Forces includes three playable characters and a fourth optional character via DLC. Akin to Sonic Adventure 2, the story will be told from the perspective of each of the characters throughout the game, and when it all is put together it will tell the overarching story. The first two of these characters include Classic Sonic (Sonic's original design from the Sega Mega Drive Sonic games) and Modern Sonic (Sonic's revised form in Sonic Adventure and after). Other main characters will make non-playable appearances, offering support and advice to the player via radio communication.
The game's third playable character is a new character, referred to as the Avatar, whom players can modify to their liking, which is a first for the series. The Avatar is created from the base of seven animal species, and possess several attributes that can be customized. However attributes like species, gender, head shape, eye shape and voice can only be set once. While playing through the game, one can unlock hundreds of accessories and costuming options for the Avatar. Depending on what animal species the Avatar is, they will gain a unique ability to aid in gameplay:
- Bear: Blows away enemies with a Homing Attack
- Bird: Flies high with Double Jump abilities
- Cat: Keeps one Ring after being hit
- Dog: Restarts with five Rings after the player dies
- Hedgehog: [original] Collected Rings when getting damaged
- [day-one patch] Dropped rings remain longer after taking damage
- Rabbit: Has longer invincible time after receiving damage
- Wolf: Automatically draws in Rings when near them
The overall gameplay is relatively unchanged from previous Sonic entries; players run at high speeds through levels filled with gimmicks, enemy robots, and other hazards on the way to the goal. If the player takes more than 60 minutes to complete a stage, they will receive a Time Over and be returned to the stage select screen (also called the "World Map"). Scattered around levels are Rings: Rings protect players when they take damage, though they will lose their Rings upon being hit. Sonic Forces has two difficulties that affect the Ring cap. "Normal" mode only allows players to collect up to 100 Rings. Getting hit by enemies will decrease the Ring count by twenty each time. "Hard" mode on the other hand allows players to collect up to 999 Rings, but getting hit will make them lose all their Rings. Taking damage without any Rings will cost the player a life. A character will also lose a life if they drown or fall into a bottomless pit. Losing a life makes the player start from the last Star Post they passed in an stage or from the beginning of the stage if they have not passed any Star Posts. However, Nakamura has stated that there are no Game Overs. Wisps, which give players temporary special powers, from earlier games also return. The game also incorporates a point system in the form of "Stage Scores" for each stage, which can be increased by collecting Rings and item, attacking enemies, and destroying obstacles.
The game features four different gameplay styles. Two of these include those of Modern Sonic and Classic Sonic respectively as seen in Sonic Generations, with both of them having different sets of abilities. Some stages involve simply reaching the goal, while others will require a stage to be beaten under a time limit. Modern Sonic's stages are based around three-dimensional movement like that of Sonic Unleashed and Sonic Colors, with Modern Sonic having his standard Spin Jump, Double Jump, Jump Dash, Homing Attack, Quick Step and Stomp maneuvers, along with a reworked Air Boost and Boost. Classic Sonic's stages meanwhile, focuses on 2.5D side-scrolling stages reminiscent of the Sega Mega Drive-era of games, except this time they will feature a “twist”. Classic Sonic will also have maneuvers like the signature Spin Dash and the Drop Dash from Sonic Mania. There is also a Rank system installed in the game that is given at each end of the level based on the player's performance in said level.
The third gameplay style features the Avatar. Its style is similar to Modern Sonic's, but utilizes a grappling hook as a means of platforming. The Avatar also makes use of new unique gadgets called Wispons for both attacking enemies and traversal. Depending on the Wispon equipped, Avatars can harness Color Powers in new ways by collecting a corresponding Wisp within each stage; e.g. if the Avatar is equipped with the Burst Wispon, they can activate Red Burst abilities. Before a level, the player can choose different Wispons to customize how the Avatar controls, thereby allowing access to different parts of the levels. Like accessories, players can unlock new Wispons as they progress. Sonic Forces also has network synchronization, allowing players from around the world to "rent" other players' Avatars and their equipped Wispon. These "Rental Avatars" can be chosen on the World Map and can be freely switched out with the player's own Avatar during gameplay.
The fourth gameplay features a tag team mechanic (akin to that in Sonic Heroes) that involves Modern Sonic and the Avatar. The player will wield both characters to navigate through the level, with the leader automatically switching to Sonic when boosting and the Avatar when using the Wispon. Also included is a new move called the "Double Boost", which is a faster version of the Boost that is triggered when the player engages in an automatic Real-Time Interaction.
- Air Bubbles
- Red Star Ring
- Number Rings
- Silver Moon Rings
- Wisp Capsule
Gimmicks and obstacles
- Sonic the Hedgehog (classic and modern)
- Avatar (First appearance)
- Shadow the Hedgehog (after downloading "Episode Shadow")
- Miles "Tails" Prower
- Knuckles the Echidna
- Amy Rose
- The Chaotix
- Team Dark
- Silver the Hedgehog
- Dr. Eggman
- Metal Sonic
- Infinite (First appearance)
- Chao (Cameo)
- Buzz Bomber
- Egg Pawn
- Unnamed ostrich Badnik
- Unnamed arachnid Badnik
- Lost Valley
- Ghost Town
- Prison Hall
- Egg Gate
- Arsenal Pyramid
- Luminous Forest
- Green Hill
- Park Avenue
- Casino Forest
- Aqua Road
- Sunset Heights
- Capital City
- Chemical Plant
- Red Gate Bridge
- Guardian Rock
- Network Terminal
- Death Egg
- Metropolitan Highway
- Null Space
- Imperial Tower
- Mortar Canyon
- Iron Fortress
- Final Judgement
Episode Shadow exclusive
Options is the settings menu for Sonic Forces which holds the following options:
- Difficulty Level: Select "Normal" or "Hard" difficulty.
- Hints: Turn the in-game Hint Rings on or off.
- Radio: Turn the in-game radio communication during the stages on or off.
- Voice/Text Language: Set the language of voices and text display.
- Reset to Default: Revert to the default settings.
- Confirm: Save settings and return to the title screen.
In Theater, the player can re-watch previously viewed movie scenes from the game.
Episode Shadow is a free add-on pack for anyone who owns Sonic Forces. It focuses on Shadow the Hedgehog, Rouge the Bat and E-123 Omega, and serves as a prequel to the main storyline of Sonic Forces. It launched alongside the game with Sonic Forces Digital Bonus Edition and also in the normal packs of the game.
"Episode Shadow" explores Shadow's allegiance, the fate of Team Dark, and the origin of Infinite. The player assumes control over Shadow, who handles similarly to Modern Sonic. The pack also adds thirteen extra levels to the game; three are original, while ten are redesigned versions of Modern Sonic stages.
According to Shun Nakamura, Sonic Team created "Episode Shadow" to help the game appeal to fans of older games such as Sonic Adventure. Upon its announcement, several gaming journalists noted that "Episode Shadow" was the first time Shadow was a playable character in a mainline Sonic game for several years, and Game Informer wrote that it was much more difficult than the main game.
The game's soundtrack is being composed by Sonic series sound director, Tomoya Ohtani, and composer, Naofumi Hataya. Kenichi Tokoi also contributed with a remix of the US version of Stardust Speedway's music for Metal Sonic's boss battle. The game's theme song, "Fist Bump", features lyrics written and performed by Douglas Robb, vocalist of the American rock band Hoobastank. Singers Jon Underdown and Nana Hatori will contribute to the soundtrack for several pieces of background music heard in stages. It was announced at the Tokyo Games Show that there will be a Sonic Forces Hi-Res Collection featuring pieces performed by the London Symphony Orchestra. According to Shun Nakamura, the orchestra was used to emphasize the weight in pieces such as the title theme and the world map. 
|A Sonic Hero||Earned every trophy.||Platinum|
|A New Story Begins||Cleared Stage 1.||Bronze|
|Your Own Story||Create an Avatar.||Bronze|
|Sextuple Trouble||Defeated Zavok.||Bronze|
|Infinite Possibilites||Drove off Infinite.||Bronze|
|Mean Egg Machine||Drove off Eggman.||Bronze|
|For the Future||Liberated a world.||Bronze|
|Courage in Hand||Drove off Infinite again.||Bronze|
|Hope||Turned the tide of the conflict.||Bronze|
|Bonds of Friendship||Defeated Infinite.||Bronze|
|Saved the World||Restored peace to the world.||Bronze|
|Sonic and the Secret Stages||Cleared all Secret Stages.||Silver|
|Sonic EXtreme||Cleared all EX Stages.||Silver|
|Reach for the Red Stars||Collected all Red Star Rings.||Silver|
|Sonic Teaches Numbers||Collected Number Rings three times.||Silver|
|Don't Lose Count||Collected all Number Rings.||Silver|
|Silver Moon Mania||Collected Silver Moon Rings three times.||Silver|
|Our Rings are Your Rings||Collected all Silver Moon Rings.||Gold|
|Ring Enthusiast||Collected a total of 10,000 Rings. (All Rings held at the end of the stage will be counted.)||Bronze|
|Ring Collector||Collected a total of 50,000 Rings. (All Rings held at the end of the stage will be counted.)||Bronze|
|Ring King||Collected a total of 100,000 Rings. (All Rings held at the end of the stage will be counted.)||Bronze|
|Fighter||Defeated 1,000 enemies.||Bronze|
|Warrior||Defeated 5,000 enemies.||Bronze|
|General||Defeated 10,000 enemies.||Bronze|
|Hooked on Wispons||Changed Wispons for the first time.||Bronze|
|Way Past Cool||Equipped a part in every slot.||Bronze|
|Running in Style||Used the Closet.||Bronze|
|On a Roll||Achieved a soldier's highest honor.||Bronze|
|Honor Roll||Achieved highest honors with all races.||Silver|
|Global Allies||Utilized the Rental Avatar function.||Bronze|
|Rivalry Begins||Made it into the rankings.||Bronze|
|A New Beginning||Created your second Avatar.||Bronze|
|Sonic Blaster||Collected 10 Wispons.||Bronze|
|Sonic Jammer||Collected 30 Wispons.||Bronze|
|Sonic Battler||Collected all Wispons.||Gold|
|Outfitter||Collected 50 parts.||Bronze|
|Style Hog||Collected 100 parts.||Bronze|
|Fashion Unleashed||Collected 500 parts.||Bronze|
|You Got Them All||Collected all parts.||Silver|
|Everyday Enthusiast||Completed 3 Daily Missions.||Bronze|
|Daily Devotee||Completed 5 Daily Missions.||Bronze|
|Constant Connoisseur||Completed 10 Daily Missions.||Silver|
|Super Sonic Rescue||Completed your first SOS Mission.||Bronze|
|Freedom Fighter||Completed 5 SOS Missions.||Bronze|
|Nameless Hero||Completed 10 SOS Missions.||Silver|
|Up for Any Challenge||Completed all Challenge Missions.||Gold|
On 31 August 2017, Sonic the Hedgehog's official Twitter account announced the official release date of Sonic Forces, along with a physical bonus edition of the game available for pre-ordering for the PlayStation 4, Xbox One and the Nintendo Switch. The bonus edition consists of a Sonic and Infinite-themed controller skin for the game's respective console and the "Sega/Atlus Pack DLC" which contain outfits for the Avatar. The latter of these include the following:
- Jet Set Radio: Beat's glasses and outfit.
- Persona 5: The protagonist's mask and outfit.
- PuyoPuyo:  's hat.
- Super Monkey Ball: AiAi's ears and outfit.
- NiGHTS: NiGHTS' hat and outfit.
For the appearance of Sonic Forces on Tokyo Game Show 2017, limited merchandise related to the game was handed out to the attendees. These included Sonic Forces posters, Sonic Forces-themed t-shirts, Sonic Mania-themed chopsticks, and Sonic Forces and Mania-themed keychains. Also, on 12 September 2017, a racing mobile game tie-in to Sonic Forces entitled Sonic Forces: Speed Battle received a soft launch for iOS and Android.
On 19 September 2017, pre-orders for a digital bonus edition of the game titled Sonic Forces Digital Bonus Edition was made available. This bundle includes the full Sonic Forces game, the Shadow costume, the "Sega/Atlus" Pack, and the "Episode Shadow" DLC.
On 22 September 2017 during the Tokyo Game Show event for Sega, they announced there will be a Sonic Forces promotional collab at Hooter restaurants in Tokyo from 16 October 2017 to 10 December 2017. During this time, customers could order a Chili dog meal and collect one of four specially designed coasters. These coasters were of Modern and Classic Sonic, Tails and Knuckles, Shadow and Infinite, and the official promoted wolf and cat forms of the Avatar. At dinner time, special dances were held to the main theme of Sonic Forces, "Fist Bump". They also announced a cross promotion with Hatsune Miku: Project DIVA Future Tone to be held in six different locations in Japan from 7 October 2017 to 5 November 2017. Attendees of the events received Sonic Forces posters and Project DIVA Future Tone badges. Those preordering the game would also receive a costume of Shadow the Hedgehog for the Avatar.
The International Business Times praised Sega's approach of announcing and releasing the duo of Sonic Forces and Sonic Mania in the same year, stating that catering to the new fans with Forces while catering to the old-school fans with Mania could help repair the series's poor reputation with more recent releases, and in turn lead to a "Sonic Renaissance" era.
Reception following the game's showing at the E3 2017 has been mixed to favorable. Heather Alexandra from Kotaku praised the game's three gameplay styles and the Egg Dragoon boss battle, though she felt that the platforming side of it was in need of some tweaking. James Galizio from TechRaptor also praised the Egg Dragoon battle, calling it a "very interesting Boss Battle", but remarked that there were some slow-downs in the demo for the Nintendo Switch's handheld mode. Ed McGlone from Twinfinite found the Avatar's gameplay clunky; expressing the feeling that the gravity was not so prepared in the demo, and the Avatar would instantly be pulled onto the ground after a jump. However, he found Modern Sonic's gameplay a smoother version of Sonic Generations, with the Boosting mechanic being more refined while also praising the storyline's direction. Alex Olney of NintendoLife was more critical, thinking that the demo version of the game lacked focus and direction while also calling Modern Sonic's gameplay "dry and boring", and the Avatar stages an "afterthought". Sonic Forces also earned the nomination award for Peoples Choice at Gamescom 2017 by IGN. At the end, it came in at 2nd place.
The Nintendo Switch's version of the demo has a couple of issues reported compared to other consoles. This includes a lower FPS, lower-quality texture, effects and models, and lowered resolutions.
Polygon gave Sonic Forces a mixed review of 5/10. The website praised the game's visuals, but criticized its repetitive boss fights and felt the game did not advance the series' design. They also took issue in the ranking system, rewarding players for completing stages in a fast manner rather then exploring the stage for collectibles. The four reviewers of Famitsu were more positive, giving the game a 35/40, praising the character creation system and soundtrack.
- This is one of the first games to be announced for the Nintendo Switch, as well as the second third-party title announced for the system.
- This is the first 3D Sonic title to be released for the Xbox One, PlayStation 4, and the Nintendo Switch.
- An analysis between the console versions of Sonic Forces has noted the following differences:
- The PlayStation 4 version is rendered in 1080p/60FPS with no notable improvements on the PlayStation 4 Pro but if the player puts the system in rest mode and returns to it over a period of time, degraded performance can be seen.
- The Xbox One version is rendered in 720p/60FPS on the original Xbox One and Xbox One S models and due to an adaptive v-sync system, temporary screen-tearing has been noted. When played on an Xbox One X, this game version is rendered in 1080p/60FPS and 1800p/60FPS on Xbox One X depending on the stage being played.
- The Nintendo Switch version is rendered in 720p/30FPS and has reduced texture quality, simpler lighting and pared back geometry detail compared with its more powerful counterparts.
- This is the first Sonic title to be released in China since a compilation of four games including Sonic R, Sonic the Hedgehog CD, Sonic & Knuckles Collection and Sonic 3D Blast, which was released in 2001 by now-defunct Matrix Interactive in China and following a long game console ban imposed in the country (which was lifted in 2015).
- This is also be the first Sonic title in Chinese (in both simplified and traditional).
- This is the first main Sonic title to be co-developed by Hardlight, which previously developed mobile games.
- This is the second Sonic title to run at 4K resolution (Xbox One only), after Sonic Mania.
- The titles of numerous trophies are references to past Sonic media.
- "A Sonic Hero" may be referencing Sonic Heroes.
- "Fashion Unleashed" is a reference to Sonic Unleashed.
- "Infinite Possibilities" is a synonymous reference to the Sonic Unleashed theme song, "Endless Possibility".
- "Mean Egg Machine" is a reference to the Adventures of Sonic the Hedgehog spin-off game, Dr. Robotnik's Mean Bean Machine.
- "Sonic and the Secret Stages" is a reference to Sonic and the Secret Rings.
- "Courage in Hand" may also be a reference to the Sonic and the Secret Rings song, "Seven Rings In Hand".
- "Sonic EXtreme" is a reference to the canceled 3D Sonic game, Sonic X-treme.
- "Reach for the Red Star Rings" is a reference to the Sonic Colors song, "Reach for the Stars".
- Though not particularly a Sonic reference, "Sonic Teaches Numbers" seems to be a reference to the 1991 educational Mario game, .
- This could also be an allusion to Sonic's Schoolhouse.
- "Silver Moon Mania" may be a reference to Sonic Mania.
- "Way Past Cool" is a reference to the unused Sonic the Hedgehog television series song, "Burning Way Past Cool".
- "Sonic Blaster" is a reference to Sonic Blast.
- "Sonic Jammer" is a reference to Sonic Jam.
- "Sonic Battler" is a reference to Sonic Battle.
- "Super Sonic Rescue" references Super Sonic.
- "Freedom Fighter" is a reference to the Freedom Fighters, either of the Sonic the Hedgehog television series, the Sonic the Comic comic series or the Archie Sonic the Hedgehog comic series.
- This is the first Sonic title since Sonic Colors to have a main vocal theme song.
- This is the first Sonic title since Sonic Generations to feature vocal themes on stages, and the first game since Sonic and the Black Knight to feature vocal themes for characters.
- This game shares some similarities with Sonic Adventure 2.
- In both games, each playable character has a unique genre for their stages' music, provided by Tomoya Ohtani.
- Both games have stages that take place in the same or a near area, but with different names (for example, Sunset Heights and Park Avenue).
- In both games, Eggman has a pyramid base set in a desert area (that being Arsenal Pyramid and Hidden Base/Sand Ocean).
- This, along with Sonic Rivals 2 are so far the only existing United States cover art of a Sonic the Hedgehog series video game to not depict Sonic with either a smiling or neutral expression on the box artwork (excluding international releases).
- This is the first Sonic title to feature the Red Wisp, Ivory Wisp, and Violet Wisp on home consoles.
- This is the third Sonic title to feature the playable character spinning vertically when jumping on a Spring since Sonic CD.
- This is the first 3D Sonic title with the Boost mechanic to feature playable characters who are not a version of Sonic (Sonic the Werehog and Classic Sonic in Sonic Unleashed and Sonic Generations respectively).
- This the first main series title to feature Shadow the Hedgehog as a playable character (albeit in a DLC) since Sonic the Hedgehog (2006).
- This is the first main series Sonic game, outside of Sonic Boom series, where Colleen Villard voices Tails.
- In Japan, this is the first main Sonic game to have Kotaro Nakamura voice Eggman after the passing of Chikao Ōtsuka, his previous Japanese voice actor.
- The gritty silver text seen in early trailers looks similar to the early logo for Sonic Adventure 2 from when that game was still in production.
- This is the second time Eggman announced a three-day timetable regarding his plans as shown in the story trailer. The first game to have this was Sonic Heroes.
- It is technically the first time Eggman himself announced a three-day timetable for his plans as well, as the one in Sonic Heroes was heavily implied to have been supplied by Neo Metal Sonic while disguised as Eggman.
- This is the second time that one of the main villains (in this case, Infinite) disparagingly refers to Sonic as a rat with Sonic correcting him regarding his actual species. The first time was with Sonic and the Secret Rings via Erazor Djinn.
- In Episode Shadow, Shadow can perform a maneuver similar to the Light Speed Attack.
- Upon the game's release, dataminers found a working Super Sonic and t-shirts for the Avatar that star the infamous "Sanic" meme image imprinted on it. This is thought to be upcoming downloadable content.
- The official Sonic social media had actually teased this design several months before the game's release with a parody game trailer.
- This is one of the few main Sonic games in which the Chaos Emeralds do not play an important role in the storyline. The Emeralds only appear when Sonic turns into Super Sonic, as discovered by data miners.
- This is the seventh game in the franchise overall (and sixth in the main series) to receive an E10+ Rating by the ESRB.
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 SSF1991 (12 April 2017). Famitsu Has Released New Information On Sonic Mania & Forces, Iizuka Interview. Retrieved on 12 April 2017.
- ↑ Tom Warren (20 August 2017). Here’s every game enhanced for Xbox One X. Retrieved on 21 August 2017.
- ↑ 3.0 3.1 3.2 3.3 John Linneman (7 November 2017). Sonic Forces focuses on PS4 with clear issues on other systems. Eurogamer.net. Retrieved on 9 November 2017.
- ↑ McFerran, Damien (9 October 2017). Sega confirms Sonic Forces is 720p 30fps on Nintendo Switch. Retrieved on 9 October 2017.
- ↑ Shun Nakamura is the producer of Sonic Forces (16 March 2017). Retrieved on 17 March 2017.
- ↑ Shun Nakamura on Twitter (Japanese) (11 August 2017). Retrieved on 11 August 2017. “Shun Nakamura: 今回、ストーリーは、日本でストーリー要素や流れを作り、全体をしっかり書き上げてから、アメリカにて、セリフや間をリライトしてます。日本版は、更にそこからリライト。時間がかかり、イベント班には多大な迷惑を...。”
- ↑ Warren Graff on Twitter. Twitter (16 April 2017). Retrieved on 17 May 2017.
- ↑ 8.0 8.1 8.2 8.3 SSF1991 (16 March 2017). Sonic SXSW 2017: Vocal Theme Revealed For Sonic Forces, Tomoya Ohtani Is Sound Director, Release Still 2017. TSSZ News. Retrieved on 17 March 2017.
- ↑ 9.0 9.1 Tomoya Ohtani on Twitter. Twitter (14 June 2017). Retrieved on 14 June 2017.
- ↑ Tomoya Ohtani on Twitter. Twitter (25 August 2017). Retrieved on 25 August 2017.
- ↑ セガを代表するアクションゲーム「ソニック」シリーズの最新作！3Dアクションゲーム『ソニックフォース』が2017年11月9日（木）に発売決定！！ (Japanese). Sega Japan. Retrieved on 3 October 2017.
- ↑ 12.0 12.1 12.2 12.3 12.4 12.5 12.6 12.7 12.8 Sonic the Hedgehog on Twitter. Twitter (31 August 2017). Retrieved on 31 August 2017.
- ↑ SSF1991 (17 March 2017). SXSW Sonic 2017: Sonic Forces Gameplay Shown, Hedgehog Engine 2 Confirmed. TSSZ News. Retrieved on 17 March 2017.
- ↑ Sonic Forces receives E10+ rating. Entertainment Software Rating Board. Retrieved on 16 August 2017.
- ↑ SSF1991 (16 March 2017). SXSW Sonic 2017: Project Sonic 2017 Is Officially Called “Sonic Forces”. TSSZ News. Retrieved on 17 March 2017.
- ↑ 16.0 16.1 Sonic Forces - TGS 2017 Otakumode Interview (52:37). YouTube (23 September 2017). Retrieved on 24 December 2017. “Takashi Iizuka (as translated by board's translator): So...last month, uh, in August was the release of a game called "Sonic Mania", and uh, it got a really warm, uhm... welcome from everyone in the community, from all the fans, specially abroad a lot of people are enjoying playing it. And, uhm... I really hope that if you play "Sonic Mania", you get to play "Sonic Forces" too... you may think those titles are unrelated, but actually, they may not be, and there might be a... (laughs). Definitely, I want you to check both titles because there is something going on between the two.”
- ↑ 17.0 17.1 SSF1991 (23 July 2016). Sonic 25th Party: Iizuka: Sonic 2017 Project Is “Not A Sequel, A Completely New Experience”. TSSZ News. TSSZ News. Retrieved on 17 September 2016.
- ↑ Iizuka Confirms Sonic 25th San Diego Party Livestream + “New Sonic Project” Info, & Fire & Ice/M&S Being Only 2016 Titles. TSSZ News (23 July 2016). Retrieved on 23 July 2016.
- ↑ Whitehead, Thomas (23 July 2016). Project Sonic 2017 Confirmed for Nintendo NX Release. Nintendo Life. Gamer Network.
- ↑ Osborn, Alex (25 June 2016). Sonic Team's New Project Releasing in 2017. IGN. Ziff Davis. Retrieved on 17 September 2016.
- ↑ Sonic Forces - TGS 2017 Otakumode Interview (24:56). YouTube (23 September 2017). Retrieved on 24 September 2017. “Takashi Iizuka (as translated by board's translator): The, uh, the idea behind the beginning of Sonic Forces was really to bring back a... ah... a modern 3D Sonic made by Sonic Team because it had been quite a while since we, uh, we ourselves made a 3D Sonic so, uh, we really wanted to, uhm, to have people discover a classic 3D Sonic, but also, uhm, wanting to offer as much content as possible, bringing back all the characters that everyone loves, and also, uh, some good 2D experiences as well, so it is basically, eh, trying to give you, uh, a fuller package with everything you love about Sonic /.../ And, uh, so uhm, we definitely, uhm, had a lot of feedback of people wanting to create their own character in the Sonic world or trying to, you know, ah live the adventure through the original character so we decided to implement an Avatar system so people actually get to create their own Sonic universe character and, uh, join Sonic in their adventure.”
- ↑ 22.0 22.1 KitKat (27 October 2017). A long Sonic Forces interview with Iizuka and Nakamura. Sonic United. Retrieved on 4 November 2017.
- ↑ Wallace, Kimberley (5 October 2017). Sonic Forces Producer Discusses Changes To Ring System And Darker World. Gameinformer. Retrieved on 6 October 2017.
- ↑ McWhertor, Michael (23 July 2016). 'Project Sonic' coming to Nintendo NX, PS4, Xbox One and PC in 2017. Polygon. Vox Media. Retrieved on 17 September 2016.
- ↑ Duwell, Ron (26 July 2016). SEGA confirms two new Sonic games, a retro-throwback and a Sonic Generations sequel. TechnoBuffalo. TechnoBuffalo. Retrieved on 17 September 2016.
- ↑ Nunneley, Stephany (23 July 2016). Project Sonic out holiday 2017 for PC, NX, PS4, Xbox One – watch the reveal trailer here. VG247. VG247. Retrieved on 17 September 2016.
- ↑ Fahey, Mike (23 July 2016). And This Is Basically Sonic Generations 2. Kotaku. Univision Communications. Retrieved on 17 September 2016.
- ↑ Plessas, Nick (25 July 2016). Sonic the Hedgehog making a triumphant return to 3D—this time for real. Electronic Gaming Monthly. EGM Media. Retrieved on 17 September 2016.
- ↑ SEGA: “Project 2017 Planned To Include Classic 2D & Modern 3D Stages, In Addition To That There Will Be New Component”. TSSZNEWS. SSF1991 (28 October 2016). Retrieved on 28 October 2016.
- ↑ SEGA: “We Have Plans To Introduce A Completely New Character In Sonic Project 2017”. TSSZNEWS. SSF1991 (28 October 2016). Retrieved on 28 October 2016.
- ↑ Brad (13 February 2017). SONIC MANIA, PROJECT 2017 REVEALS COMING TO SXSW 2017. Sonic Stadium.
- ↑ 32.0 32.1 New Project Sonic 2017 information confirms villain, multiplayer status and genre. Sega Bits. Nintendo Dream Magazine (14 February 2017).
- ↑ 33.0 33.1 SSF1991 (16 March 2017). SXSW Sonic 2017: Sonic Forces Gameplay Shown, Hedgehog Engine 2 Confirmed. TSSZ News. Retrieved on 17 March 2017.
- ↑ 34.0 34.1 34.2 Sonic Forces: Custom Hero Trailer. YouTube. Sega (16 May 2017). Retrieved on 16 May 2017.
- ↑ 35.0 35.1 35.2 35.3 35.4 35.5 Sonic Forces - E3 Trailer. YouTube. Sega (13 June 2017). Retrieved on 13 June 2017.
- ↑ 36.0 36.1 SEGA® Releases New Sonic Forces™ Trailer and Key Art. Gamasutra (13 June 2017). Retrieved on 14 June 2017.
- ↑ rawmeatcowboy (15 June 2017). Chao will not be featured in Sonic Forces. GoNintendo. Retrieved on 16 June 2017.
- ↑ Goldfarb, Andrew (25 August 2017). Gamescom 2017: Teaming Up in Sonic Forces. IGN. Retrieved on 25 August 2017.
- ↑ 39.0 39.1 ソニックフォース (Japanese). Tokyo Game Show. Retrieved on 8 September 2017.
- ↑ 40.0 40.1 ソニック委員会 on Twitter (Japanese). Twitter. Sega (8 September 2017). Retrieved on 8 September 2017.
- ↑ 41.0 41.1 ソニック委員会 on Twitter (Japanese). Twitter. Sega (8 September 2017). Retrieved on 8 September 2017.
- ↑ 42.0 42.1 TGS2017セガゲームス生放送！DAY3(9/23)【TGS2017】. YouTube. Sega (22 September 2017). Retrieved on 23 September 2017.
- ↑ 43.0 43.1 43.2 Sonic Forces will let you play as Shadow the Hedgehog. eurogamer. Retrieved on 19 September 2017.
- ↑ 44.0 44.1 Sonic Forces - Episode Shadow Gameplay. Sonic the Hedgehog on YouTube. Retrieved on 19 September 2017.
- ↑ SSF1991 (20 March 2017). Aaron Webber Interviewed Jun Senoue & Tomoya Ohtani (Japanese). TSSZ News. Retrieved on 22 March 2017.
- ↑ 46.0 46.1 46.2 46.3 46.4 46.5 media:SFManualEN001.jpg
- ↑ 47.0 47.1 47.2 Sonic Forces Japanese website (Japanese). Characters. Archived from the original on 11 September 2017. Retrieved on 11 September 2017.
- ↑ 48.0 48.1 アジトはレジスタンスの (Japanese). Famitsu. Enterbrain, Tokuma. October 2017. p. 58.
- ↑ Sonic Forces producers on the Avatar and story plus more, brief Sonic Mania talk (Japanese). Famitsu (14 June 2017). Retrieved on 8 August 2017.
- ↑ SSF1991 (18 March 2017). Shun Nakamura On Sonic Forces Story: “The World Was Conquered By Eggman, So What Was Sonic Doing ‘Till Then?”. TSSZ News. Retrieved on 19 March 2017.
- ↑ 仲問たちヵ集まる場所 (Japanese). Famitsu. Enterbrain, Tokuma. October 2017. p. 59.
- ↑ 52.0 52.1 Sonic SXSW Panel 2017! (Sonic Forces & Sonic Mania!). YouTube. Tails' Channel (16 March 2017). Retrieved on 17 March 2017.
- ↑ 『ソニックフォース』ストーリー紹介ムービー (Japanese). YouTube. Sega (22 June 2017). Retrieved on 27 June 2017.
- ↑ 『ソニックフォース』プロモーション映像 (Japanese). YouTube. Sega (13 September 2017). Retrieved on 14 September 2017.
- ↑ Scibetta, Nicholas (16 June 2017). Interview: Takashi Iizuka and Shun Nakamura on the state of Sonic in 2017. Gamecrate. Retrieved on 19 June 2017.
- ↑ 56.0 56.1 56.2 56.3 Shea, Brian (17 March 2017). A Longer Look At Modern Sonic. Game Informer. Retrieved on 17 March 2017.
- ↑ 57.00 57.01 57.02 57.03 57.04 57.05 57.06 57.07 57.08 57.09 57.10 57.11 Dornbush, Jonathon (16 May 2017). Sonic Forces Character Creation Feature Announced. IGN. Retrieved on 17 May 2017.
- ↑ E3 2017: IGN Sonic Forces Interview With Aaron Webber, New Gameplay. SSF1991. TSSZ News (12 June 2017). Retrieved on 13 June 2017.
- ↑ 59.0 59.1 Alexandra, Heather (June 14, 2017). Sonic Forces Impressions: Great When It Sticks To Its Roots. Heather Alexandra. Kotaku. Retrieved on June 16, 2017.
- ↑ Shun Nakamura on Twitter (Japanese). Twitter (5 July 2017). Retrieved on 25 August 2017. “Shun Nakamura: ゲームオーバー？➡︎ないよ。”
- ↑ 61.0 61.1 Sonic Forces - First Modern Sonic Gameplay. YouTube. Sega (17 March 2017). Retrieved on 17 March 2017.
- ↑ Sonic Forces results screen!. Sonic Paradox News (12 June 2017). Retrieved on 13 June 2017.
- ↑ Sonic Official - 14 - Hero Side Episode. YouTube. Sega (25 March 2017). Retrieved on 26 March 2017.
- ↑ XtaZe (22 August 2017). Aperçu Gamescom 2017 - Sonic Forces : la force du hérisson. Revue Multimédia. Retrieved on 23 August 2017.
- ↑ 65.0 65.1 65.2 E3 on Twitch: Show Live (1PM). Twitch. E3 2017 (12 June 2017). Retrieved on 12 June 2017.
- ↑ 66.0 66.1 66.2 『ソニックフォース』プロモーション映像 (Japanese). YouTube. Sega (13 September 2017). Retrieved on 14 September 2017.
- ↑ Dornbush, Jonathon (17 March 2017). Sonic Forces Gameplay Eyes-On Impressions. IGN. Retrieved on 18 March 2017.
- ↑ 68.0 68.1 68.2 68.3 Nick Robinson on Twitter. Twitter (12 April 2017). Retrieved on 13 April 2017. “Nick Robinson: some characters i noticed during my Sonic Forces demo last month: • Silver the Hedgehog • Vector the Crocodile • Charmy Bee • Espio”
- ↑ Sonic Forces - Episode Shadow Gameplay. YouTube. Sega (19 September 2017). Retrieved on 19 September 2017. “A first look at gameplay of Sonic Forces' Episode Shadow add-on! A prequel to the main storyline of Sonic Forces, this add-on content explores Shadow's allegiance, the fate of Team Dark, and the origin of the mysterious villain, Infinite.”
- ↑ 『ソニックフォース』ゲーム紹介映像 (Japanese). YouTube. Sega (20 October 2017). Retrieved on 20 October 2017.
- ↑ Shun Nakamura on Twitter (Japanese) (3 July August 2017). Retrieved on 30 August 2017. “Shun Nakamura: 先日お伝えしたウィスポン バーストを使ったアクション中の画面写真。自在に空中のリングを取れます。そして、その奥に見えるのは、デスクラブ！エッグマンは「デス」好きですね。”
- ↑ 72.0 72.1 Sonic Forces Kicks Off Pre-Orders for the Digital Bonus Edition Today. Gamasutra (19 September 2017). Retrieved on 19 September 2017.
- ↑ Sonic Team, Sega. Sonic Forces - Episode Shadow Gameplay. YouTube. Alphabet. Retrieved on 30 October 2017.
- ↑ Whitehead, Thomas. Shadow to be Playable in Free 'Episode Shadow' DLC for Sonic Forces. Nintendo Life. Gamer Network. Retrieved on 30 October 2017.
- ↑ 75.0 75.1 Robinson, Martin. Sonic Mania and its impact on the future of the Sonic series. Eurogamer. Gamer Network. Retrieved on 30 October 2017.
- ↑ Frank, Allegra. Shadow is playable in Sonic Forces DLC. Polygon. Vox Media. Retrieved on 30 October 2017.
- ↑ Shea, Brian. Free Day One DLC Adds Shadow As Playable Character. Game Informer. GameStop. Retrieved on 30 October 2017.
- ↑ Frank, Allegra (6 July 2017). Sonic Forces recruits Hoobastank for its perfectly on-brand theme song. Polygon. Vox Media. Retrieved on 6 July 2017.
- ↑ Behind the Scenes: Sonic Forces Orchestra Theme. YouTube (24 September 2017). Retrieved on 24 September 2017.
- ↑ Sega on YouTube (Japanese) (23 September 2017). Retrieved on 24 September 2017.
- ↑ Shun Nakamura on Twitter (Japanese). Twitter (25 September 2017). Retrieved on 25 September 2017. “Shun Nakamura: オーケストラは、タイトルやワールドマップなど重みを強調する部分で使われます。勇ましい感じがして、私は非常にお気に入りです。頻繁に聞く音楽なので、こちらもお楽しみいただければと思います。”
- ↑ Sonic Forces PS4. Smyth's Toys. Retrieved on 8 September 2017.
- ↑ Sonic Forces. Game. Retrieved on 8 September 2017.
- ↑ 84.0 84.1 Sonic Forces Bonus Edition. EB Games. Retrieved on 1 September 2017.
- ↑ 『ソニックフォース』とHOOTERSのコラボレーションイベントが10月16日（月）から開始！ (Japanese). Sonic Channel. Retrieved on 14 October 2017.
- ↑ 86.0 86.1 NintenMau5 (5 November 2017). Famitsu: Here Are The Full Review Details For Sonic Forces. My Nintendonews. Retrieved on 6 November 2017.
- ↑ 87.0 87.1 Parish, Jeremy (6 November 2017). Sonic Forces review. Polygon. Retrieved on 5 November 2017.
- ↑ Skipper, Ben (July 25, 2016). Sega announces retro Sonic Mania and post-apocalyptic Project Sonic for 2017. International Business Times. IBT Media. Retrieved on September 17, 2016.
- ↑ Galizio, James (June 14, 2017). E3 2017 – Sonic Forces Hands On Impressions. Kotaku. Retrieved on June 16, 2017.
- ↑ McGlone, Ed (June 14, 2017). Sonic Forces Embraces Modern Characters Like Shadow and Will Be Fuel for Fanfics. twinfinite. Retrieved on June 16, 2017.
- ↑ Olney, Alex (July 5, 2017). First Impressions: Running Scared from Sonic Forces. NintendoLife. Retrieved on July 6, 2017.
- ↑ FIFA 18 (29 August 2017). FIFA 18 Wins Gamescom People's Choice Award. IGN. Retrieved on 29 August 2017.
- ↑ Peal, Alexander (June 16, 2017). Sonic Forces on Nintendo Switch E3 Impressions. sonicstadium.org. Retrieved on June 27, 2017.
- ↑ Sonic Forces Wispon, Storyline and Music Detailed. PlayStation LifeStyle. Retrieved on October 5, 2017.
- Official website (Japanese)