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Sonic News Network
Sonic News Network

What kind of hedgehog are you?

— Tagline

Sonic Adventure 2 (ソニックアドベンチャー2 Sonikku Adobenchā Tsū?) is a platform game developed by Sonic Team and published by Sega in 2001 as a part of the Sonic the Hedgehog series. It is the sequel to Sonic Adventure. It was developed to celebrate the tenth anniversary of the Sonic series.

Sonic Adventure 2 was originally released on 23 June 2001. In Japan, it also came with a limited-time Birthday Pack (バースデイパック?) during the first two days of release. This game introduces two new playable characters, Shadow the Hedgehog and Rouge the Bat, who would go on to become two of the more recurring characters in the Sonic series.


Spoiler warning: Plot, ending details or any kind of information follow.


Hero Story

Sonic in City Escape.

This story begins with a military helicopter (Sigma-Alpha 2) flying over the city with Sonic being captured aboard it. Suddenly the pilot starts shouting "What?! The hedgehog is gone! He's taking out everyone aboard!" At that moment, Sonic the Hedgehog jumps out of the helicopter, rips off a piece of the wing to use as a snowboard, and then jumps off. After he destroys a military mech, he encounters a near look-alike of himself named Shadow the Hedgehog who has stolen a Chaos Emerald from the bank a while earlier. Sonic realizes that the military is mistaking him for Shadow. Shadow proceeds to use the emerald to transport to a different location, and Sonic is arrested.

At the same time, Knuckles the Echidna and a mysterious character named Rouge the Bat are fighting over who owns the Master Emerald. Dr. Eggman tries to steal the Master Emerald, but Knuckles stops him in his path by breaking the Master Emerald into pieces. Knuckles and Rouge have a hunt for the pieces of the Master Emerald. Knuckles finds the first three pieces in Wild Canyon.

The next day Miles "Tails" Prower comes to Prison Island in search of Sonic, rescuing Amy Rose from Dr. Eggman in the process. Then Amy frees Sonic from his cell, and Sonic escapes on a missile. Knuckles leaves Wild Canyon, and heads for Pumpkin Hill. There he finds three more pieces of the Master Emerald. Knuckles leaves Pumpkin Hill, and heads for the Aquatic Mine. Meanwhile, Sonic gets weary, jumps off the missile, and lands on a small island in a vast jungle. There he confronts Shadow once again.

Sonic soon discovers the jungle is going to explode and leaves just in time. When they get back, Eggman is on televisions everywhere and it is revealed he is being taped from a space-station named "Space Colony, ARK". Suddenly half of ARK comes off, revealing a long pointer called the 'Eclipse Cannon' which shoots out a powerful beam and destroys half of the moon. A timer on screen appears saying 24 hours until mass destruction. Later, Tails discovers Space Colony ARK and the massive power of the Eclipse Cannon. He has to find Sonic, tell the President and escape the military all before it is too late. He eventually finds Sonic and escapes the military.

Meanwhile, Knuckles finds the last three pieces he can find of the Master Emerald in the Aquatic Mine. He later pops out of a manhole beside Tails, who is talking to Sonic and Amy over a phone on loudspeaker. Tails chases down the President, then he and Sonic tell the President about the situation they are in. Sonic, Knuckles, Tails, and Amy then head for Dr. Eggman's "secret" base inside the pyramid. Sonic breaks through the security system. Knuckles then has to find three keys to get into the rocket room. Knuckles defeats King Boom Boo, the king of ghosts. After that, Dr. Eggman appears and summons the Egg Golem, which Sonic has to take care of. As soon as he is defeated, they blast off in the rocket.

In all the excitement of the space ship, the cargo bay opens releasing the pieces of the Master Emerald Knuckles had collected. Sonic remarks that only the Master Emerald pieces were inside there. Knuckles thinking quickly takes control of the ship causing it to spin out of control. Knuckles jumps ship and lands on a small planet and finds the pieces he lost, leaving Sonic, Tails, and Amy screaming on the ship which then crash lands into the ARK. He defeats Rouge and gets the rest of the Emerald. Meanwhile, in Space Colony ARK, Tails is heading for the engine of the Eclipse Cannon. He destroys the engine, so it's up to Sonic now. Amy gets kidnapped by Eggman and demands the last emerald in exchange. Sonic, who has a fake Chaos Emerald, makes it to the central control room. Unfortunately for Sonic, Eggman anticipated the likelihood that one of them had the fake emerald, and after tricking Tails into admitting that Sonic had the fake emerald, Eggman then shot Sonic out of an escape capsule that was going to explode in the middle of space. Before being launched out, Sonic encourages Tails to stop Eggman, and tells Amy to take care of herself. Just before the pod exploded, Sonic also considered the possibility of using the fake Chaos Emerald to escape via Chaos Control, due to it having similar wavelengths to an actual Chaos Emerald.

All Tails, Amy and Eggman can see is a capsule blowing up, so they presume Sonic was killed in the vicinity. Tails is so riled up that, in a burst of anger, he defeats the Doctor. Meanwhile, Knuckles (with the full Master Emerald) spots Sonic coming out of a portal. Sonic tells Knuckles how he used Chaos Control to save himself, and speeds to the Eclipse Cannon. Sonic confronts Shadow one last time, and destroys the Eclipse Cannon. Tails, still grieving over Sonic's "death", briefly and half-heartedly attempted to tell his fallen friend that he managed to defeat Eggman. Sonic, having apparently overheard Tails' comment, responds by congratulating him, causing Tails and Amy to learn that Sonic survived, but also distracts them while Eggman grabs the last Chaos Emerald. Sonic then told them to look outside. They then look out the window and sees Sonic at the tip of the cannon smiling and giving a thumbs-up to both of them.

Dark Story

This story begins with Dr. Eggman infiltrating Prison Island in search of the Ultimate Life Form A.K.A. Project: Shadow, a weapon created by his grandfather, Gerald Robotnik. He finds the "weapon" inside a capsule and by using a Chaos Emerald (and the password M.A.R.I.A.), he soon discovers that the weapon is a male hedgehog. The doctor initially mistakes Shadow the Hedgehog for his enemy Sonic the Hedgehog, and nearly fights him. Then, Shadow proves himself by defeating the military guard fighter. After Shadow defeats him, he leaves, heading for Space Colony ARK and tells Eggman to bring more Chaos Emeralds and meet him on the ARK.

Meanwhile, Rouge the Bat is fighting with Knuckles over who truly owns the Master Emerald. Dr. Eggman uses this to his advantage, and attempts to take the Master Emerald. Knuckles stops him by breaking the Master Emerald into pieces. Rouge and Knuckles have to hunt for the pieces of the Master Emerald. Rouge finds three pieces in the Dry Lagoon.

Shadow in Radical Highway.

Later, Dr. Eggman goes to his base to check up on things, and watch the replay of the news. He finds out that the G.U.N. robots are guarding his pyramid base. He destroys them and goes on inside. While he is watching the replay of the news, he discovers that Shadow had stolen a Chaos Emerald from the Federal Reserve Bank yesterday with everyone mistaking him for Sonic. The scene changes to where Shadow is leaving the bank when he has a flashback of what happened on Space Colony ARK with him and his friend Maria Robotnik. He proceeds to speed down the highway, destroying any robot that gets in his way.

He later sees Sonic, explains to Sonic who he is and leaves. The next day, Rouge decides to infiltrate Dr. Eggman's base. To do so, she has to find three keys. Meanwhile, Dr. Eggman and Shadow are on board the ARK. Shadow tells Eggman about Space Colony ARK and the power of the Eclipse Cannon. He then puts in the two Chaos Emeralds. They return to the base at the time Rouge finds the last key. Rouge persuades her conditions to Eggman into helping her by giving him a Chaos Emerald, and telling him where three other emeralds were. Before the deal is closed, she introduces herself to Shadow.

Shadow, Dr. Eggman, and Rouge headed for Prison Island, where the three Chaos Emeralds are. Dr. Eggman breaks through the security system and fights Tails, who happens to be nearby. Rouge finds the three Chaos Emeralds and defeats another Military Fighter. However, the fight leaves her locked inside the room. Shadow rushes through the jungle, plants the bomb, finds Sonic and fights him. It ends in a tie, neither of them win because Shadow has to escape the jungle before it blows up. So he grabs Rouge, and warps onto the ARK.

Later, Eggman is broadcasted on the televisions everywhere and it is revealed to all he is being taped from the ARK. Half of the station comes off, which reveals a long pointer called the Eclipse Cannon which shoots out a powerful beam, destroying half of the moon. Then, there is a timer on the screen saying 24 hours until mass destruction. At the ARK, Rouge explains that she knows where the location of the last Chaos Emerald is: with Tails. Shadow and Rouge try to catch the Tornado (Tails' plane). Rouge can't catch up in her car and Shadow can't catch them in Sky Rail. They head back to the ARK to tell Eggman.

By this time, Knuckles has unlocked the entrance to Eggman's base, so Eggman summons his Egg Golem. However, Sonic damages the head of the golem, causing it to turn on Eggman. Eggman has to destroy his Egg Golem to pass. A while later, he and Shadow (who are still on the pyramid) discovers that Sonic and his friends are on the ARK. Rouge soon discovers that Knuckles is on a small planet with the pieces of the Master Emerald. She finds half of the pieces, then they fight. It is a draw and she gives the pieces to Knuckles.

Eggman in Lost Colony.

Meanwhile, Eggman has kidnapped Amy Rose. A while later, Eggman discovers Tails and Sonic rushes into the room he was in. Eggman shoots Sonic out of an escape capsule which is going to explode and then fights Tails. Despite the young fox's best efforts, Eggman takes the real Emerald. Meanwhile, Shadow witnesses Rouge attempting to take the other six Emeralds and exposes her as a government agent. Rouge then proceeds to show him the results of Project Shadow, with the picture showing an entirely different being. She then asks Shadow that if the picture shows the real Ultimate Life Form, then she wonders who or what is standing in front of her. Eggman contacts Shadow, declaring that someone is attempting to get to the Eclipse Cannon and orders him to stop them before the cannon fires again. Shadow finds it to be none other than Sonic, who he fights and defeats one last time. Meanwhile, Eggman inserts the last Chaos Emerald into the Eclipse Cannon. While he is cheering over his apparent victory, a nearby monitor turns on forebodingly.

Last Story

This story continues from the Dark Story, with an alarm blaring throughout the ARK's central control room. Eggman is confused and frustrated, as the Eclipse Cannon is not firing. Suddenly, an image of Eggman's grandfather, Gerald Robotnik, appears on the computer monitor.

Meanwhile, continuing from the Hero Story, Sonic and Knuckles return to the Ark's interior, where they suddenly feel a large vibration. At that moment, Rouge appears and declares that they are all doomed, revealing that the Space Colony ARK is heading towards earth at a tremendous velocity. On televisions everywhere, including the ARK, a recording of Gerald Robotnik plays; he explains that the ARK will crash into earth and destroy it along with the human race, with the power of all seven Chaos Emeralds.

Eggman comes in and Knuckles starts yelling at him, thinking that Eggman is behind all of this. Instead, Eggman gives Rouge his grandfather's diary and Rouge reads it out loud, revealing that the professor went insane after his granddaughter Maria was killed when the Ark was shut down. Gerald went mad because he loved Maria so much, and was devastated that his own research lead to her death. Wanting revenge on all humanity, he programmed the Ark to crash into the earth when the seven Chaos Emeralds were collected.

Sonic, Tails, Knuckles, Rouge and Eggman work together to stop the energy from the Chaos Emeralds to stop the ARK from crashing into earth. They quickly hatch a plan a plan to stop the Chaos Emeralds with the Master Emerald. Meanwhile, Amy finds Shadow and tries to convinces him to help them save the world. Though Shadow initially refuses, Amy's words cause him to remember Maria's true dying wish; to protect earth and humanity, and to "give them a chance to be happy". Determined to keep his promise, Shadow rushes off to catch up with the others.

Sonic and Knuckles arrive at the cannon's core, which is designed to resemble the shrine of the Master Emerald, with the Chaos Emeralds there. When Sonic and Knuckles try to get closer to the shrine, Gerald's voice is heard again and a snake/lizard like beast called the Biolizard is awakened. They realize that this is the prototype of the Ultimate Life Form. Shadow appears and distracts the Biolizard, while Sonic and Knuckles get to the shrine and find a space for the Master Emerald. Knuckles does the chant to negate the power of the Chaos Emeralds and the Biolizard disappears after engaging a fight with Shadow. They hear Eggman's voice saying that the Biolizard is still alive, as it used Chaos Control to teleport and fuse together with the ARK to become the Finalhazard and is keeping it on its crash course towards earth.

Super Sonic fighting the Finalhazard.

Sonic and Shadow use the Chaos Emeralds to transform into Super Sonic and Super Shadow, respectively. They fight the Finalhazard in outer space, defeating it and using a super-powered Chaos Control to warp the ARK back into stable orbit. However, Shadow's power is drained and he falls to earth, content that he has fulfilled his promise to Maria. As the people on earth celebrate, Sonic returns to the ARK alone, giving Rouge Shadow's ring cuff. The credits begin to roll, and the heroes contemplate on everything that has transpired and their plans for the future. As Sonic and his friends leave the ARK to return to earth, Sonic quietly bids a final farewell to Shadow the Hedgehog in the same manner as Maria.


Image Characters Biography
Adv sonic ok 32.png
Sonic the Hedgehog The fastest hedgehog on earth has a little competition. Mistaken for an escapee, Sonic is being chased by a secret military organization. He'll have to catch up with the mysterious black hedgehog in order to thwart Dr. Eggman's latest plan to conquer the world.
Sa2 shadow.png
Shadow the Hedgehog The black hedgehog that resembles Sonic. Shadow is the ultimate lifeform created by Professor Gerald. Shadow has a special ability called "Chaos Control," which allows him to warp time and space using Chaos Emeralds. After telling Dr. Eggman about the existence of the Eclipse Cannon, Shadow encourages Dr. Eggman to join up and help conquer the world.
TailsPose Adventure2.png
Miles "Tails" Prower This fox boy with two tails can create mechanical inventions that rival those of made by Dr. Eggman. This time, Tails pilots his latest walker, "Cyclone." He will support Sonic completely with his mechanical abilities.
Sonic Adventure 2 Eggman.png
Dr. Eggman Also know as Dr. Robotnik, Dr. Eggman is a self-proclaimed genius. He is an evil scientist with an IQ of 300. A renowned authority on robotics, Eggman joins forces with Shadow and Rouge in a plot to conquer the world. Once he has collected the Chaos Emeralds, he plans to take care of his lifelong rival, Sonic, once and for all.
Sa2 knuckles.png
Knuckles the Echidna The guardian of the Master Emerald, Knuckles takes his residence on the floating Angel Island. He is known as a treasure hunter, but is a skilled martial artist as well. Ever since the Master Emerald was shattered, Knuckles has made it his mission to collect each every shattered peice.
Sa2 rouge.png
Rouge the Bat As a hunter who devotes her life to the pursuit of jewels, Rouge is determined to make herself rich. She is passionate about her work, and once she's set her sights on a new treasure, she stops at nothing until she gets it. In order to collect the many pieces of the Master Emerald, she offers to help Shadow and Dr. Eggman—but her true identity remains a mystery to them both.
SonicAdventure2 Art2D AmyRose.png
Amy Rose A cheerful girl full of passion who loves to chase after Sonic wherever he goes. Learning that Sonic was arrested by the military troops. she comes to Prison Island alone. She has a strong sense of intuition and a pure heart.
Maria Robotnik A beautiful and mysterious girl that exists in the memory of Shadow, Maria is the granddaughter of Professor Gerald and a cousin of Dr. Eggman.
Prof. Gerald Robotnik A briliant scientist and Dr. Eggman's grandfather. Noted as one of the most brilliant minds of all time, Professor Gerald designed the world's first space colony "ARK." He was also involved in the development of the ultimate life form: "Project Shadow." He later disappeared under mysterious circumstances.


As with Sonic Adventure, Sonic Adventure 2 is a 3D third-person action platformer video game. Gameplay takes place between two different points of view storylines, the "Hero" story and the "Dark" story; the player has the option of advancing in either one or the other at any time. The player controls Sonic, Knuckles, Tails in the "Hero" side of the story, while they play as Shadow, Rouge and Dr. Eggman in the "Dark" storyline, though they all play similarly to their opposite counterparts. The game is divided into a series of stages where the player controls one of the aforementioned characters, depending which the side they are part of. Interspersed between the levels are various bosses, which one particular character must fight. Levels advance in order for each storyline, come between each of the playable characters. The main story line can only be finished when both "Hero" and "Dark" story modes are finished, and an extra story feature is revealed where the player must use all the characters to beat it.

Similar to past Sonic games, the goal of Sonic Adventure 2 is to get to the end of the aforementioned stages while a timer counts the time spent within each stage, though each character has a different way of passing through them. In these stages, the player might find Rings, which serve as their character's main defense against enemies and obstacles; should the playable character be hit by an obstacle or enemy, they will survive at the cost of losing all their Rings. However, if the player takes damage without having any Rings on them, they will lose a life, or get a Game Over if they do not have any lives left. In the former's case, the playable character will respawn at the latest Point Marker they touched, or at the start of the stage if they did not touch any Point Markers. In addition, there are certain circumstances where the character will be given an instant death, no matter how many Rings they have. These include drowning, being crushed, or falling into a bottomless pit.

At the end of each stage, the player is given a score based on the number of Rings collected and time spent within the level. The less time is taken and the more Rings obtained, the higher the score is. The player is also given a Rank based on their performance, a letter grade that is either A, B, C, D, or E, with A being the highest and E being the lowest. Irrelevant to any other factors, an A Rank is automatically awarded to players that complete any score-ranked mission with all of the Rings from that level in the player's possession.

There are five missions within each Action Stage; in order to obtain the second mission, the player must complete the first one, to unlock the third, the second mission must be finished, and so on. In order from first through fifth, the missions are to complete the level, collect one hundred Rings, find a "lost Chao" using the Mystic Melody Level Up Item, finish within a time limit, and complete a "Hard mode" version of the Action Stage.

Emblems are also given within the game; there are one-hundred and eighty Emblems in total. In order to gain all Emblems, players must complete every mission within every stage, achieve an A rank in all stages and missions, etc. After collecting all Emblems, the player unlocks Green Hill, a remake of Green Hill Zone from the original Sonic the Hedgehog.

Returning back from Sonic Adventure are the Chao, small creatures that can be raised by the player in Chao Gardens, similar to a virtual pet. A new feature introduced is that Chao may change their appearance and alignment depending on what character the player is using and how do they treat them; if a Chao is well treated by a "Hero" side character or abused by a "Dark" side one, they will turn into a "Hero Chao", a benevolent and polite Chao. On the other side, well treated by a "Dark" side character or abused by a "Hero" side one, they will turn into a "Dark Chao", a rude type of Chao.

Character-specific gameplays

High-Speed Action Stages

Sonic and Shadow's gameplays are identical to that of Sonic in Sonic Adventure. The fastest of their respecive character roasters, they can perform a Spin Dash to gain instant speed in seconds and use a Homing Attack to target an obstacle or enemy and home in on them for an attack. Sonic and Shadow's stages end by touching a Goal Ring.

In addition, Sonic and Shadow's abilities can be upgraded by collecting Level Up Items; after finding the Light Speed Shoes or the Air Shoes, respectively, they will be able to perform the Light Speed Dash; when they obtain the Ancient Light, they will be able to perform the Light Speed Attack; and by getting the Flame Ring, Sonic and Shadow will be able to use the Fire Somersault.

Lock-On Shooting Stages

Tails and Dr. Eggman have similar gameplay to that of E-102 Gamma in Sonic Adventure. In gameplay, they be driving the walker mode of the Cyclone and the Eggwalker, respectively. Unlike other characters, Tails and Eggman make use of a Health Gauge, which can be filled by collecting Rings. When the Health Gauge is empty, the player will lose a life, or get a Game Over if they run out of lives. Despite walking slowly and being capable of doing small jumps, they can use the Lock-on to target enemies and obstacles, and the Lock-On Missile to launch missiles to said targets. The Volkan Cannon fires a mini-gun at targets, but is not as effective as the Lock-On Missile.

Tails and Eggman's abilities can be upgraded by collecting Level Up Items; when they find the Bazooka or the Large Cannon, respectively, they will be increase the power of the Volkan Cannon; by collecting the Booster or the Jet Engine, respectively, the playable character will be able to Hover; and the Laser Blaster makes the missiles of the Lock-On Missile release violent explosions upon contact, thus damaging enemies that are near the target as well. Eggman can also collect the Protective Armor, which increases the durability of his Eggwalker.

Hunting Stages

Knuckles and Rouge have the same gameplay as Knuckles in Sonic Adventure. When playing as either of them, the player is required to find three Emerald Shards or similar objects hidden in the stage to complete it. To facilitate the search of the Emerald Shards, the player will be able to make use of the Emerald Radar, which will tell them whether or not they are near a hidden object. While slightly slower than Sonic and Shadow, they are able to Glide to fall much slower to the ground, thus being able to pass through large pits. If they hit a vertical wall while gliding, Knuckles/Rouge will use Climb, where they will be able to climb or scale said wall. They can also Dig when they are on a solid ground, thus being able to find buried objects.

Scoring system



Gimmicks and obstacles


Playable characters

Non-playable characters



Hero Story

  1. F-6t Big Foot (City Escape) (first appearance)
  2. Dr. Eggman (Metal Harbor)
  3. Shadow (Green Forest) (first appearance)
  4. King Boom Boo (Death Chamber) (first appearance)
  5. Egg Golem (first appearance)
  6. Rouge (Meteor Herd) (first appearance)
  7. Dr. Eggman (Crazy Gadget)
  8. Shadow (Final Rush) (first appearance)

Dark Story

  1. B-3x Hot Shot (Iron Gate) (first appearance)
  2. Tails (Weapons Bed)
  3. R-1/A Flying Dog (Security Hall) (first appearance)
  4. Sonic (White Jungle)
  5. Egg Golem (Sky Rail) (first appearance)
  6. Knuckles (Mad Space)
  7. Tails (Cosmic Wall)
  8. Sonic (Final Chase)

Last Story

  1. Biolizard (Cannon's Core) (first appearance)
  2. Finalhazard (first appearance)


Normal stages

Hero Story

  1. City Escape
  2. Wild Canyon
  3. Prison Lane
  4. Metal Harbor
  5. Green Forest
  6. Pumpkin Hill
  7. Mission Street
  8. Aquatic Mine
  9. Route 101
  10. Hidden Base
  11. Pyramid Cave
  12. Death Chamber
  13. Eternal Engine
  14. Meteor Herd
  15. Crazy Gadget
  16. Final Rush

Dark Story

  1. Iron Gate
  2. Dry Lagoon
  3. Sand Ocean
  4. Radical Highway
  5. Egg Quarters
  6. Lost Colony
  7. Weapons Bed
  8. Security Hall
  9. White Jungle
  10. Route 280
  11. Sky Rail
  12. Mad Space
  13. Cosmic Wall
  14. Final Chase

Last Story


Other modes

Two-Player Mode

Sonic and Shadow in Action Race.

Unlike its predecessor, Sonic Adventure 2 has a multi-player mode. Like the single player mode, 2P Player has action racing (Sonic/Shadow levels), treasure hunting (Knuckles/Rouge levels) and shooting (Tails/Dr. Eggman levels). Each type of stage is played split-screen except for the shooting stages. The conditions for winning in each type are as follows:

  • Action Race - The player who reaches the Goal Ring first wins.
  • Treasure Hunt - The first player to find two pieces of the Master Emerald wins.
  • Shooting - The first player to reduce their opponent's health gauge to zero wins.

There is also a Kart Racing mini-game in the two-player mode, but the player will have to clear the Kart Stages in the Hero and Dark stories in order to enable Kart Racing in 2P Play..

Big in the Eggwalker, exclusive to the Dreamcast version.

Along with the six main characters of the game, the two-player mode has some unlockable characters that are exclusive to 2P Play. These include Amy Rose (playable after beating all of Sonic's levels with an "A" Rank), Metal Sonic (playable after beating all of Shadow's levels with an "A" rank), Tikal (playable after beating all of Knuckles' levels with an "A" rank), Chaos 0 (playable after beating all of Rouge's levels with an "A" rank), a Chao (playable after beating all of Tails' levels with an "A" rank), and Big (playable after beating all of Eggman's levels with an "A" rank).

Shadow's outfit.

Another exclusive to the two-player mode is alternate outfits. In the Dreamcast version, the player could unlock special costumes for each of the six main characters by completing all of their respective missions. Sonic and Shadow's costumes originated from Phantasy Star Online, an online RPG series that was also developed by Sonic Team, while all the other characters had unique outfits. Also on the Dreamcast version were seasonal costumes for Halloween and Christmas, available as DLC in late 2001.


Role English voice actor Japanese voice actor
Sonic the Hedgehog Ryan Drummond Jun'ichi Kanemaru
Miles "Tails" Prower Connor Bringas Atsuki Murata
Knuckles the Echidna Scott Dreier Nobutoshi Canna
Amy Rose Jennifer Douillard Taeko Kawata
Shadow the Hedgehog David Humphrey Kōji Yusa
Ryan Drummond (few lines only)[2]
Rouge the Bat Lani Minella Rumi Ochiai
Dr. Eggman Deem Bristow Chikao Ōtsuka
Omochao Lani Minella Etsuko Kozakura
Maria Robotnik Moriah Angeline Yuri Shiratori
Gerald Robotnik Marc Biagi Chikao Ōtsuka
Chao Tomoko Sasaki
President Steve Broadie Kinryū Arimoto
Secretary Sue Wakefield Mami Horikoshi
GUN Soldiers Marc Biagi Kōji Ochiai
Scott Dreier Tōru Ōkawa
G.U.N. computer voice Sue Wakefield Mami Horikoshi
News reporter Lani Minella
Space Colony ARK computer voice Scott Dreier Tōru Ōkawa
Default menu theme Shelly Fox


Sonic Team USA in San Francisco.

Sonic Adventure 2 was developed by Sonic Team USA, the now-defunct U.S. division of Sonic Team, and published by Sega. After the longtime series contributor Takashi Iizuka brought select members of Sonic Team to America to polish up the English release of the original Sonic Adventure, the team immediately begun their first project as the U.S. branch of Sonic Team - Sonic Adventure 2- shortly after the release of the American version of Sonic Adventure in 1999. It was designed to be more action-oriented than the slower-paced, more story-driven Adventure. The development team ran the game at 60 frames per second with "tempo", giving Sonic a variety of actions rather than focusing on speed alone. Its levels facilitated this flow, making Sonic seem faster than he was.[3]

Taking inspiration from their Southern California location for the game's levels and environments, the developers were inspired by San Francisco (their headquarters) and other American locations, such as Yosemite National Park (where they vacationed during its development), the Golden Gate Bridge and the San Francisco Bay Area. Sonic Team thus decided to set Sonic Adventure 2 in the fictional "Central City", featuring their own takes on these landmarks. Compared to Sonic Adventure, the sequel was intended to have "more of an American flavor".[3] Although the game's level design prioritized the frame rate, it was more streamlined than Sonic Adventure because of the team's experience with Dreamcast hardware.[4]

Throughout its development cycle, Sonic Adventure 2 changed rather dramatically. Early media and interviews with Yuji Naka point to there only being three playable characters initially: Sonic, Knuckles, and Eggman. After outcry from gamers wondering where certain franchise-staple characters were, Tails, and newcomers Shadow and Rouge were revealed to be playable. The fact that Tails, Shadow, and Rouge were possibly added to the roster later in development may help explain why over half the levels in the game recycle assets from other stages.

A Dark Chao and Hero Chao.

Iizuka described the Chao as a "relative neutral entity" in Sonic Adventure. In the sequel the developers expanded the creatures' presence, adding the ability to raise "Hero" and "Dark" Chao to reflect the conflict between good and evil. For the same reason, all six playable characters have roughly equal gameplay time (unlike Sonic Adventure, where Big the Cat's and E-102 Gamma's stories were short).[3] In Sonic Adventure 2, Chao have the ability to socialize, so they resemble a "real artificial life form."[4]

Other early preview material point to the game at one point having branching storyline pathways; one example given of this in effect was a scenario involving Sonic trapped, underwater, in a submarine. The player would be given one of two options: make Sonic try to pilot the submarine to safety, or open the hatch and take his chances in the water (despite Sonic being unable to swim). Though scrapped for Sonic Adventure 2, branching storyline pathways were eventually introduced in Shadow the Hedgehog. However neither Sonic Adventure 2 nor Shadow the Hedgehog contains any scene with a submarine in it.

Promotional artwork of Shadow and the early logo of the game.

Sega announced a follow-up to Sonic Adventure and a spinoff (which would become Sonic Shuffle) on 4 October 1999.[5] The newly named Sonic Adventure 2 appeared at E3 2000, with Sonic Team adding video shown there to its website on 30 June.[6] Sonic Team posted a trailer and a number of screenshots on 30 May 2001,[7] with Sega promoting Sonic Adventure 2 as the last Sonic game for the Dreamcast and as marking the series' 10th anniversary.[8] Sega held a 10th-anniversary party for Sonic in June 2001, at which attendees could compete in a battle tournament; the winner played against Iizuka.[4]

Sonic Adventure 2 was released worldwide on 23 June 2001,[9] marking Sonic's 10th Anniversary. A special collectors edition of the game was produced, featuring a large blue case that contained the game, a music CD (featuring tracks spanning Sonic's 10 year history), a Sonic the Hedgehog retrospective booklet, and a commemorative coin. Though originally intended to be limited edition, so many copies of it were published that it is fairly easy to find one for relatively cheap.


Aggregate scores
Aggregator Score
GameRankings 83.3%[10]
Metacritic 89%[11]
Review scores
Publication Score
Edge 7/10[12]
Famitsu 33/40[13]
GamePro 4.5/5[14]
Game Revolution B[15]
GameSpot 8.6/10 (US)[16]
8.8/10 (UK)[17]
IGN 9.4/10[18]
Dreamcast Magazine 93%[19]

Sonic Adventure 2 received critical acclaim, with scores of 89 percent and 83.3 percent from review aggregators Metacritic and GameRankings.[10][11] Critics appreciated the game's multiple playing styles. According to Edge and reviewer Four-Eyed Dragon of GamePro, the core game's three styles and bonus features such as Chao gardens made the game engaging to play.[12][14] Johnny Liu of Game Revolution praised its replay value of multiple playing styles and 180 different goals.[15] Anthony Chau of IGN called it "one of the best Sonic games ever": "If this is the last Sonic game in these declining Dreamcast years, it's satisfying to know that the DC didn't go out with a bang, but with a sonic boom."[18]

Shahed Ahmed of GameSpot criticized Adventure 2's camera for the "cardinal sin" of 3D platformers: forcing a player to jump to an out-of-frame platform. Ahmed wrote that although a player can re-orient the camera with the trigger buttons, it reverts when the character moves.[16] According to Chau and Liu, camera issues were absent in Tails' and Eggman's levels and insignificant in Sonic's and Shadow's, but searching for Emerald shards and items in cramped sections of Knuckles' and Rouge's levels was frustrating.[15][18] Edge found camera problems permeating the game, with no significant improvement from Adventure.[12]

Liu called the graphics "sweet, sweet eye-crack".[15] Four-Eyed Dragon wrote: "Sonic [Adventure] 2 is simply jaw-dropping beautiful", citing its detailed backgrounds and scenery and the playable characters' and enemies' extensive color palettes.[14] According to Chau, the game had "some of the best textures ever seen" and was one of the most beautiful Dreamcast games.[18] Edge was impressed by the texture detail and draw distance,[12] and Chau, Liu and Ahmed praised its 60-frame-per-second rendering speed.[15][16][18]

According to Ahmed, the game's music was a step up from Adventure's "campy glam-rock and J-pop soundtrack", with less emphasis on lyrics,[16] and Liu appreciated its more "understated" approach.[15] Four-Eyed Dragon called Adventure 2's music "an eclectic mix of orchestrated masterpieces, guitar tunes, and melodic hip-hop voices gracefully fill the game's ambiance to a perfect pitch."[14] Reaction to the voice acting was mixed; although Ahmed said "The voice acting, and the lip-synching in particular, is executed quite well",[16] Liu and Chau thought the English voices were inferior to the Japanese ones.[15][18]

Ahmed criticized Adventure 2's plot: "Throughout the game the plot becomes more and more scattered and lackluster", not focusing long enough on one element to execute it meaningfully.[16] Although Liu agreed that despite the game's ambitious scope and themes it failed to advance the series' core plot beyond the Sega Genesis Sonic games,[15] Edge appreciated the story's presentation from both perspectives: hero and villain.[12]

Sonic Adventure 2 received several accolades, including the 2001 IGN's Editors' Choice Award.[20] ScrewAttack called it the fifth-best Dreamcast game,[21] and GamesRadar rated it the tenth-greatest Dreamcast game out of 25: "Despite trailing off significantly in recent years, the 3D side of the Sonic the Hedgehog franchise had a surprisingly stellar start with the Sonic Adventure entries, and the 2001 sequel really amped up the action".[22] In February 2014, IGN's Luke Karmali called the game his tenth-favorite game of all time.[23]


Image Game Platform Description
Sonic adv 2 battle box.jpg
Sonic Adventure 2: Battle Nintendo GameCube Sonic Adventure 2: Battle is the enhanced port of Sonic Adventure 2. Released in late 2001 in Japan and in early 2002 in the rest of the world.
SA2 (2012) Art.png
Sonic Adventure 2 Xbox 360, PlayStation 3, PC Sonic Adventure 2 was re-released in high-definition format via Xbox Live Arcade, PlayStation Network and Steam respectively throughout October 2012. It also featured the "Battle" DLC, which included all of the added features present in Sonic Adventure 2: Battle.


Sonic X

The anime series Sonic X included a six-episode adaptation of the game's events between "Project: Shadow" and "Showdown in Space", known as the Shadow Saga. Like its predecessor, the adaptation was mostly faithful to the game's plot, with the Japanese version even being a word-for-word adaptation at some points. However, parts were written in for characters that did not appear in Sonic Adventure 2 such as Christopher Thorndyke and Cream the Rabbit.

The Dreamcast version is known for its infamous commercial which shows a scientist approaching a hedgehog labeled "Good Hedgehog" and petting it. The camera then goes to a tank labeled "Bad Hedgehog" where a cow is being lowered in. Eating sounds could be heard along with screams from the cow until the screen goes back to the bad hedgehog burping (a parody of a scene from Jurassic Park).


The cover artwork for Multi-Dimensional.

The main theme of the game is "Live and Learn", performed by Crush 40. Some of the character themes were remixes of their Sonic Adventure counterpart. Five soundtracks were released for Sonic Adventure 2:

  • Multi-Dimensional Sonic Adventure 2 Original Sound Track contains all of the sound tracks of the game except for the character themes.
  • Cuts Unleashed: SA2 Vocal Collection contains all of the character theme songs and "Live and Learn".
  • Sonic Adventure 2 Official Soundtrack is the western-released soundtrack containing all of the character themes and some of the action stage themes.
  • Sonic Adventure 2 Battle - Sampler is a promotional disc that only contains the tracks from Cuts Unleashed but all of the track's duration is halved.
  • Sonic Adventure 2 Original Soundtrack 20th Anniversary Edition contains both vocal and instrumental music tracks from the game to celebrate the twentieth anniversary of the Sonic series.
  • SONIC ADVENTURE 2 OFFICIAL SOUNDTRACK VINYL EDITION is a vinyl album of two records with a selection of both vocal and instrumental music tracks from the game.


  • The two driving levels in the game's story, Route 101 and Route 280, are named after real-world U.S. highways.
  • In Tails' "Mission Street" level, it is possible to knock over small three-wheeled cars, reminiscent of parking attendants in real-life San Francisco. The developers of the game occasionally were ticketed by these cars and allowed them to be destroyed in the game as a form of revenge. They have, however, acknowledged that the parking attendants were just doing their job.
  • In the "Good Hedgehog, Evil Hedgehog" TV commercial, the "Evil Hedgehog" section is a spoof of Jurassic Park, as the "Evil Hedgehog" ate the cow as it was lowered, similar to how the Velociraptor ate the cow in Jurassic Park.
  • This is the first Sonic game to have swearing in the English track. Swear words can be heard in the lyrics of the main theme of Knuckles the Echidna and in the lyrics for the background music of some of the stages he goes through (i.e., "Deeper"). This was also the main reason why the GameCube version has a "Lyrics" warning on the ESRB rating.
  • In the game, Eggman blows up half of the moon, but in later games with cutscenes in outer space scenes, most notably Shadow the Hedgehog and Sonic Colors, it is still perfectly intact. In Colors, it is actually shot again. Also, the earth does not appear to have any gravitational stress by the destruction of half of the moon. However, as recently confirmed by Ilzuka Takashi of Sonic Team at Sonic Boom 2013, in all later games after Sonic Adventure 2, the moon is actually still blown up. However, from Sonic Heroes onwards, you are just looking at the opposite side of the moon, the part that Eggman blew up is on the opposite side of the world, so, if you went across the world you'd see the destroyed section of the moon.[24]
  • Sonic Adventure 2 is the only game where Sonic wears the 2G Hi-Speed Shoes in order to promote the Soap product (which the 2G Hi-Speed Shoes were based on) and the new extreme sport, freestyle grinding, that the shoes were made for. There are also many billboards, blimps and benches in the game that advertised the shoes. The 2G Hi-Speed Shoes themselves are a custom version of the Scorcher/Nitro Soap Shoe, while Shadow wears a pair of custom Broadside Soap shoes, as grinding (or "soaping") debuted as an important new gameplay element.
  • This is the first non-spin-off game where Dr. Eggman is playable.
  • This is the first game in which Eggman points a gun at someone.
  • In the cutscene mentioned above, the pilot of the helicopter identifies himself in military talk as "Sigma-Alpha 2", which translates from Greek as "SA2," the game's initials.
  • Shadow was originally deemed dead after the events of the Last Story, but his reception from fans caused him to return to the series.
  • This is the last main series Sonic game on a Sega console since Sega eventually withdrew from the console market after the release of this game.
  • If one were to go to the Theme Select in the Options menu and rotate the Control Stick clockwise for a few moments until hearing a chime sound, they would then see a picture of the President's Secretary and should then be able to select the Secretary's theme.
  • Green Hill Zone returns as an unlockable stage, which marks its big comeback in recent Sonic games, as it had not been seen since Sonic Jam. The stage's background music is a remixed version of the original song, and when Sonic destroys an enemy (which are the first Badniks instead of G.U.N. robots), the same sound effects from the original game are played instead of the usual sound effects.
  • In the Mad Space level for Rouge, there are two Easter eggs. First, the player must go under the starting platform to its base, and kick open the iron box where they will find a blue defense item container from the Dreamcast game Phantasy Star Online: Episode I & II. Also, the player should go to the outlying platform with a circle of Rings and two iron boxes. They have to kick open the nearest iron box and there, they will see a green medical/technique item container from the same aforementioned RPG.
  • In the Chao Garden, there is a glitch that makes it possible to reuse an animal or a Chaos Drive from the Action Stages multiple times on a single Chao. While holding your animal, go as close to your Chao as possible without giving it the animal. Then simply drop the animal in front of your Chao and, if done correctly, the Chao will not only do the level up animation, but its stats will go up as if you actually handed the animal to the Chao, only now you can pick the animal up again. This can also be done with Chaos Drives and can be used to quickly raise your Chao's stats.
  • Also in the Chao Garden, one of the shows shown on the garden's little TV (achieved by winning all Challenge Races), features a big, mustached, orange cat (Robotnik) chasing a speedy, little blue mouse (Sonic). This is a spoof of the classic cartoon show, Tom & Jerry.
  • It is believed that Tails, Rouge and Shadow were not originally planned to be playable, due to the fact that they did not make a significant appearance in trailers until towards the end of production.
  • Shadow was originally going to be named "Terios" ('reflection of'), and Rouge was going to be "Nails" (in direct contrast to Knuckles). The prototype names can still be found within the game's (any versions') files.
  • In the Chao Garden, some characters will say untranslated lines (mostly Tails and Eggman). Also, the Chao in the Chao Kindergarten sing songs in Japanese.
  • Like Sonic Adventure, in the original Dreamcast version of the game, if you insert the disk into a PC then special wallpapers will be available to download as an easter egg. As well as that, there is a list of main series Sonic games prior to Sonic Adventure 2, although Sonic the Hedgehog CD is absent from the list. It reads:
SONIC the Hedgehog, 1991
SONIC the Hedgehog 2, 1992
SONIC the Hedgehog 3, 1994
SONIC Adventure (for Japan), 1998
SONIC Adventure, 1999
SONIC Adventure International, 1999
SONIC Adventure 2 The Trial, 2000.
  • The camera can be used to move objects in the game. This is most noticeable in the Chao Garden if you have a fruit in front of the camera and the player walks away from it. The same thing can be done in the Chao Garden in Sonic Adventure.
  • In the first cutscene of the demo version, before the player enters City Escape, the man on the radio says, "What the hell?" in the text which marks the first Sonic game to have swearing (although this is not in the final release of this game). In the final release, the script instead says, "What?!"
  • Shadow has the least amount of stages out of all the characters, with only 4 (Radical Highway, Sky Rail, White Jungle, and Final Chase).
  • This is the only Sonic game where Connor Bringas voices Tails.
  • The "Chao in Space 2" movie billboard as well as the billboard advertising for the DVD Edition of "Chao in Space" in City Escape refers to the "Chao in Space" movie billboard near the entrance of Casinopolis in Sonic Adventure.
  • In Sonic Generations, Shadow is Sonic's rival. During the opening cutscene, it is a reference to the Sonic Adventure 2: Battle opening, and during the fight, a remix of For True Story plays and if Sonic grabs 2 or 3 power cores depending on the difficulty, Live and Learn plays for a brief time.
  • City Escape returns in the console versions of Sonic Generations, as the fifth level in the game, in the Dreamcast Era.
  • Radical Highway returns in the 3DS version of Sonic Generations. Oddly enough, Sonic has never been confirmed to have visited Radical Highway before Sonic Generations.
  • In the Hub World in Sonic Generations, when in the Egg Dragoon section of the hub, a remix of E.G.G.M.A.N plays.
  • Tails is the only playable character in Sonic Adventure 2 that does not fight a major boss (not counting Eggman).
  • Sonic is the only playable character in Sonic Adventure 2 who has the most Level Up Items, a maximum of 6, while Knuckles and Eggman have 5 Level Up Items, and Tails, Shadow, and Rouge have a minimum of 4 Level Up Items.
  • Shadow before being officially named was internally known as both Dark Sonic and Terios. Dark Sonic was later used in Sonic X as a name for one of Sonic's transformations and "terios" translates into "reflection of".
  • In the Chao in Space 2 poster the rating is PG-13 as part of MPAA.
  • The Dreamcast version of the game runs a disc check to make sure it is not run from a copied disc. If this check fails, Eggman will fall through the floor when he starts his section of Cannon's Core.[25]

Big the Cat in Heroes' story first cutscene.

  • Big the Cat has six known cameo appearances in the cutscenes of Sonic Adventure 2 that can be only seen by pressing DreamcastA.png/A Button GameCube v2.png/XboxA.png/PSXButton.png. These include:
    • During Sonic's escape from the helicopter at the beginning of the Heroes' story. Big can be seen in the Dreamcast version holding onto it.
    • During Sonic and Shadow's first meeting, Big can be seen running around Shadow while Shadow is standing over the F-6t Big Foot.
    • In the cutscene after Knuckles fought King Boom Boo, Big can be seen standing behind the entrance to the shuttle once the entrance opens.
    • During the cutscene after Knuckles and Rouge's fight, Big can be seen wandering around the arena.
    • During the Last Story's intro, Big can be seen standing on the computer's plaform with Eggman.
    • In the Last Story, before Amy tries to persuade Shadow to help, Big can be seen running right and left in the hallway that leads to the room where Shadow is.
  • Shiro Maekawa has stated that he found difficulty in writing the story for Sonic Adventure 2.[26]
    • Despite this, the game's story stands to be Maekawa's favorite as he is emotionally attached to it, the game being the first story he wrote for.[26]
    • Maekawa has stated that if he had a chance to rewrite it or change something about the game's story, he would only add the scenes he had to cut.[26]



Sonic Adventure 2 (Japanese Commercial)


Sonic Adventure 2 Japan Commercial 2001


Sonic Adventure 2 Actual Japanese Commercial (Dreamcast)


Sonic Adventure 2 (XBLA) - Bonus Video Behind the Scenes


  1. SONIC ADVENTURE 2. SEGA (11 December 2001). Archived from the original on 11 December 2001. Retrieved on 18 June 2019.
  2. Ryan Drummond on Twitter. Twitter (15 October 2020). Archived from the original on 15 October 2020.
  3. 3.0 3.1 3.2 IGN Staff (4 June 2001). Interview With Sonic Adventure 2 Director Takashi Iizuka. IGN. Retrieved on 19 February 2010.
  4. 4.0 4.1 4.2 Torres, Ricardo (2 July 2001). Sonic the Hedgehog turns 10. GameSpot. Retrieved on 16 February 2014.
  5. IGN Staff (4 October 1999). Sega Speaks Out on Sonic Adventure Follow-up. IGN. Retrieved on 26 February 2014.
  6. Gantayat, Anoop (30 June 2000). First Direct Feed Footage of Sonic Adventure 2. IGN. Retrieved on 15 February 2014.
  7. IGN Staff (31 May 2001). New Sonic Adventure 2 Trailer and Screens. IGN. Retrieved on 15 February 2014.
  8. "Forecast: Sonic Adventure 2". Official Dreamcast Magazine. p. 9.
  9. SONIC ADVENTURE 2. Sonic Team. Archived from the original on 11 December 2001.
  10. 10.0 10.1 Sonic Adventure 2. GameRankings. Retrieved on February 9, 2014.
  11. 11.0 11.1 Sonic Adventure 2 for Dreamcast Reviews. Metacritic (November 25, 2014).
  12. 12.0 12.1 12.2 12.3 12.4 Sonic Adventure 2. Edge. Archived from the original on February 8, 2002. Retrieved on December 28, 2014.
  14. 14.0 14.1 14.2 14.3 Four-Eyed Dragon (June 19, 2001). Sonic Adventure 2. GamePro. Archived from the original on January 2, 2006. Retrieved on February 9, 2014.
  15. 15.0 15.1 15.2 15.3 15.4 15.5 15.6 15.7 Liu, Johnny (July 1, 2001). Sonic Adventure 2 Review. Game Revolution. Retrieved on December 28, 2014.
  16. 16.0 16.1 16.2 16.3 16.4 16.5 Ahmed, Shahed (June 19, 2001). Sonic Adventure 2 Review. GameSpot. Retrieved on December 27, 2014.
  18. 18.0 18.1 18.2 18.3 18.4 18.5 Chau, Anthony (June 22, 2001). Sonic Adventure 2 Review. IGN. Retrieved on November 2, 2014.
  20. Game Reviews. IGN. Retrieved on December 28, 2014.
  21. Top 10 Dreamcast Games. ScrewAttack. Retrieved on July 22, 2013.
  22. GamesRadar Staff (April 19, 2012). Best Dreamcast games of all time. GamesRadar. Retrieved on February 2, 2013.
  23. Karmali, Luke (February 15, 2014). Luke Karmali's Top 10 Games of All Time. IGN. Retrieved on December 28, 2014.
  24. I was at Sonic Boom 2013 in Person during the questioning session with Ilzuka Takashi of Sonic Team.
  26. 26.0 26.1 26.2 The Supreme Topic of 'Other' Knowledge. Windii. Sonic Retro (23 June 2018). Retrieved on 23 June 2018.

External links

Sonic Adventure 2

Main article | Scripts (Hero, Dark, Last) | Staff | Glitches | Beta elements | Gallery | Re-releases (Battle | 2012)
Sonic the Hedgehog console mainline games