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This article pertains to the beta elements of of Sonic Adventure 2.


Unused graphics

Rouge Radar

Unused radar items.

There appears to be graphics for the Emerald Radar in the game files that would have most likely been used as a radar in the Egg Quarters to detect the Egg Beetle, but were ultimately unused.

Random Rings

Random Ring icon.

There is an Item Box image of a Ring with a question mark on it in the game files. According to the original file name, this would have given the player a random amount of Rings.

Early menu graphics

There are a variety of unused texts related to various aspects of the game, such as Chao Races or the scrapped World Ranking from the Dreamcast version which uses Japanese texts.

TV setting title graphics

There are two sets of TV settings graphics that go unused in the final version. They would have been placed in the upper-left hand corner of the menu like all other graphic mechanics.

Stage maps

In the game files for the demo and the final game, there are maps of several stages which were not used in the final version.

Unused multiplayer screen

Unused graphic in the multiplayer.

There are two graphics in the rom of the Dreamcast disk. It is implied via their file names in the game that they were meant to be used in the multiplayer.

Unused tutorial screens

There are videos for explaining Level Up Items and special attacks that do not appear in the gameplay, though they can still be found inside the characters' files.

Scene select icon

The unused icon for the scene selection of Hero story.

The Dark story's scene select has the option to start the game during the second Sonic boss battle. However, the player must complete a stage before they can access the equivalent part in the Hero story, as its scene select does not include the boss battle. The icon for the option does exist though, and it is slightly different compared to the icon that was used for the Dark story's scene select.

Alternate character icons

SA2 Sprite Amy.png
SA2 Sprite Chao.png
SA2 Sprite Metal.png
SA2 Sprite Tikal.png
SA2 Sprite Chaos.png
SA2 Sprite Big.png

All of the unlockable multiplayer mode characters (Amy, Metal Sonic, Chao Walker, Big, Tikal and Chaos) have their own life icons, but they are left unused due to said mode not using the life system.

Monitor screen texture

The unused monitor screen texture.

This screen on the left was meant to appear on Eggman's monitor during the cutscene where Eggman realizes that Sonic's group made it to the Space Colony ARK from the pyramid base, but it has never been shown and was instead replaced.

On this screen, it is also worth noting that the emerald Tails is holding is white instead of being yellow.

Unused afterimage model

Shadow's unused afterimage model.

When Sonic performs his own version of Light Dash, an afterimage model can be seen for the duration of the technique. However, Shadow does not use his afterimage model when performing the move despite having an afterimage model stored in the game's files.

Unused objects

There are some unused objects in the Stages on the Dreamcast version of the Stage, often in inaccessible places. Others can still be interacted with, but are simply invisible.

Iron Gate

The hidden Dash Panel.

After the first locked door, there is a room with an elevator that leads to a tight tunnel. Before the room that the tunnel leads into, there is a Dash Panel inside the wall on the right.

White Jungle

White Jungle includes a number of leftovers from a early version of Green Forest. The attributes of some objects are broken, but if the object files for Green Forest are replaced with the ones from White Jungle, the out-of-bounds objects match the stage perfectly.

Near the start of the Stage, there is a misplaced Dash Panel right below the starting tunnel. Additionally, there are two additional Dash Panels slightly below the one Shadow uses at the beginning of the starting tunnel, rendering them useless. These are both present in the GameCube version.

There are more objects out of view that suggest this Stage went through significant changes during development. These objects include floating platforms, a couple of Ring trails, more Dash Panels, two Invincibility Item Box, a weird spinning object, and numerous Beetle Series enemies. These objects do not seem to have much connection to anything and outside the player's reach without cheat codes.

These objects are rearranged on the GameCube version. They contain the same kind of format, but the Item Boxes and the odd spinning objects are gone and the Beetle Series enemies perform different actions. After Shadow touches the Stage's Goal Ring, four rings appear off-screen. These Rings are in an uneven layout for some reason, and cannot be collected before the game ends.[1]

Meteor Herd

If one uses hacks to play as Sonic or Shadow in Meteor Herd, a hidden Grind Rail can be found. One end begins at the central tower, leads sharply downwards through two successive loops, and ends near the starting point.[2]

Final Chase

The off-screen Spring.

If the player makes Shadow turns around and grinds backwards on the starting Grind Rail, he will eventually encounter an off-screen Spring that bounces him into a bottomless pit.

Multiplayer City Escape

The game files of the Dreamcast version contain an unused object layout for City Escape in the multiplayer mode that is very different from both the normal version and multiplayer version in Sonic Adventure 2: Battle. Since the incomplete City Escape is never used in multiplayer, this layout is unused. It should be noted that this layout resembles the version of City Escape from the Sonic Adventure 2: The Trial more than the one in the final version of the game.[3]

Multiplayer Cosmic Wall

For whatever reason, most of the objects and some of the geometry for Cosmic Wall are loaded in the Stage's two-player version in Sonic Adventure 2: Battle, which ordinarily consists of one platform with three tiers. It is ordinarily never seen, but can be reached using moon-jump codes.

Multiplayer Green Hill

The full list of graphics for two-player locations includes Green Hill in the Dreamcast version. This implies Green Hill was going to be playable with two people, but even when it is unlocked, it is only one-player. Moreover, digging reveals that the stage is actually an option in the game's multiplayer stage select, but it is hidden and impossible to unlock.

Despite that, the stage works normally in the multiplayer mode if activated through hacking, and even includes proper pose and start points for both characters.

Hidden Rings

There are hidden Rings that can be found in bizarre locations in certain stages, usually below the starting point. It is technically impossible to obtain them normally without dying or a Thunder Shield to draw them in.

Chao Garden

Black Market

The market was going to appear in the Dreamcast version of the game before it was scrapped and ported to Sonic Adventure 2: Battle.


Game files in the game show that a playground was going to be included in the Chao Garden.


The lost library.

There was at one point going to be a Library, which the player would have been able to access from the Kindergarden. In the library, the player could have downloaded or created new stories for Chao Adventure 2. While this was never fully implemented, Chao Adventure 2 still has the modular design needed to support multiple stories. The disc has one file (OSAMPO2S) representing a blank Chao Adventure 2 VMU program with no Chao or stories loaded, which is combined with the Chao data and story files. It is possible to run the blank program on a VMU without crashing, and it displays a message that no Chao is available. The disc has ten story files, with two files for each language.

Unused models

There are several unused models for the Chao and some models for Chao Garden-related objects remaining in the game files.[4]

Unobtainable Chao

Sonic Adventure 2 contains twenty unique types of Chao. However, only ten of these (including downloadable Chao) are able to be obtained by the player. The majority of unobtainable breeds in the game are normally only seen through certain Chao races, but can be seen in the garden through cheats.

In Sonic Adventure 2: Battle, the majority of unused Chao from the Dreamcast version were removed, and more unused Chao were added.


Along with the unobtainable Chao in Sonic Adventure 2: Battle, are the unique types of eggs for them. The only Chao without a corresponding egg is the Moon Chao.

Alongside the unobtainable Chao's eggs, there is a set of eggs that can be found as well. The Chao associated with these eggs are only able to be obtained through breeding (in which a normal egg is produced), so these eggs never appear. Just like most of the other eggs in the game, shiny variations of each egg can be found.

World Rankings

The remaining flags in the lost World Rankings.

As mentioned above in the Unused Graphics section, there was a World Ranking system functionality that was going to be implemented into the Dreamcast version, but ultimately remained unused in the game itself. Its files howewer are still intact within the game's disk. There are also flags from several countries in the real world that still exist in the game's files.

Unused lines


Quotes Details
Sonic: Those robots are a total pain in the- Sonic, just before Shadow appears and uses the Chaos Control for the first time.
Shadow: My name is Shadow. The greatest life form who was given the power of Chaos Control from Pr. Gerald. This line was supposed to be said by Shadow during his first meeting with Sonic.
Sonic: Shoot... Intended to be said by Sonic at the end of the cutscene introducing Shadow in the Hero story.
GUN Soldier: There's a dead end up ahead. Spread out and find them. This dialogue is used in the Japanese audio track during the scene where Tails decides to intercept the President's limo to figure out where Eggman is. It was removed from the English version.
Shadow: I see... We really do seem to look alike. A reflection in the mirror... you're like my shadow... N/A
Shadow: Impostor? Heh, aren't you the fake one here? No... aren't you on a completely different level... to be called fake? This line was repurposed for the cutscene in Green Forest.
Knuckles: What?! A ghost?. A more frightened version of Knuckles' speech before his fight with King Boom Boo.
Knuckles: ひとんちのモン盗み出しといて何いってやがる!!いいか!そのマスターエメラルドにはカオスエメラルドの暴走を止めるという重要な役目があって…おい!人の話聞いてんのかよ!? (You're the one who's stealing from me so what are you talking about?! Listen up! That Master Emerald has the important role of preventing the Chaos Emeralds from going out of control... Hey! Are you listening to me?!) Alternate lines for the cutscene with Knuckles and Rouge arguing over the Master Emerald in the desert. These may have been intended for an earlier version of said cutscene, as Knuckles speaks his line much slower in the final version and does not ask Rouge if she is listening to him.
Rouge: 聞いてませぇん! (I'm not listening!) Replying to Knuckles' line above
Dr. Eggman: From this moment forward, you are all citizens of the great Eggman empire! Intended to be said during the "Day X" cutscene.
Amy: どうなの? テイルス? (What are you doing, Tails?)

Tails: もう少し… ビンゴッ! 探知成功!! えーと、残りのカオスエメラルドの位置は…っと (Just a little more... Bingo! Detection successful!! Um, the remaining Chaos Emerald's location is... Uh.)

Amy: どうしたの? (What's wrong?)

Tails: アーク…50年前に事故で封鎖された人類最初のスペースコロニー (ARK... The first man-made space colony that got sealed off due to an accident 50 years ago.)

Amy: どういうこと? (What does that mean?)

Tails: エッグマン達は今宇宙にいるんだ あの兵器を止めるには宇宙に行って、直接破壊するしかないよ (Eggman's gang is in space right now. We'll have no choice but to go to space and attack that weapon directly in order to stop it.)

Amy: なんですってぇー!? (What'd you say?!)

These lines come after the cutscene before Mission Street and have no English equivalent. They appear to be part of an early script, as Tails uses the President's limo to locate Eggman in the final game.
Military Officer: There's a dead end up ahead. Spread out and find them. This line is said In the cutscene where Tails decides to intercept the President's limo to figure out where Eggman is, right before Knuckles pops out of a manhole. This line appear in the Japanese audio track, but there is no equivalent in the English track.
Tails: ナックルズ! (Knuckles!) This line shows Tails's reaction to Knuckles popping out of the manhole. In the cutscene, only Amy reacts.
Tails: データのダウンロード、完了! (Data download complete!) In the cutscene where Sonic and Tails get into the President's limo, this line would have been followed by "I got it! He's transmitting from the Space Colony ARK!".
Tails: It's not fair, Eggman!

Dr. Eggman: 目的のためなら手段をえらばぬ!!それがワシのポリシーじゃ! (I can choose any means for my goals!! That's my policy!)

Tails was supposed to say this as Eggman shoots Sonic into space. Eggman's reply exists as a single line in the game files. The voice clip is only found in the Preview version and is removed from the final version's files.
Shadow: ドクター…エッグマン。 (Doctor... Eggman.) Shadow would have said this after the "I will grant you one wish..." line.
Dr. Eggman: We may be partners, but this doesn't mean I trust you. Eggman would have said this right at the end of his first encounter with Rouge.
Rouge: Bad day or what? Reply to Eggman's line above.
Dr. Eggman: で? (So?)

Dr. Eggman: 残りのカオスエメラルドはどこにあるんじゃ (Where are the remaining Chaos Emeralds?)

These are two Japanese lines would have been spoken by Eggman right after Rouge's line above.
Maria: シャドウは地球見るの好きだね (Shadow, you sure like looking at Earth.) From Shadow's flashback after Prison Island is blown up. It is slightly different from the line in the final version of the game: シャドウはあの星が好きなんだね ("Shadow, you sure like that planet.")
Sonic: No worries, Egghead! This line would have appeared just after Sonic's comment on Knuckles piloting the shuttle to the Space Colony ARK.
Sonic: I don't really care that much. Sonic would have stated this line after Eggman demanded he hand over the Emerald to save Amy.
Sonic: There's no time for this! This line would have appeared in the cutscene where Sonic and Knuckles come across the Biolizard. Sonic would have said this after Knuckles identified it as the sealed prototype.

Last Story

Quotes Details
  • Secretary: The space colony is still accelerating toward earth. In five minutes, there will be no way to stop it.
  • The President: Nothing can stop the colony now.
  • Rouge: Mr. President, don't give up just yet! Sonic and his friends can still help us.
  • Secretary: I've located the two hedgehogs. They're in the lower quadrant. The space colony has entered the Earth's atmosphere and it's accelerating.
  • President: That's ridiculous. There's no way two hedgehogs can stop the colony now.
  • Amy: They can! I believe in them! Together, they can do it. I just know it!
  • Tails: Go for it, Sonic!
  • Eggman: Shadow, we're counting on you!
  • Rouge: I'm counting on both of you!
  • Amy: Hang in there, Sonic! Shadow!
These lines were supposed to be played during the cutscene after the final boss.
  • Secretary: There's an emergency message from the space bureau. They're tracking the space colony's re-entry trajectory, and it seems to have re-appeared in quadrant L1.
  • President: You know when I was a kid, I used to dream about heroes like them and their heroic deeds.
  • Secretary: Mister president, that's why you should be like them. Never give up, believing in your dreams.
These lines would have appeared before the credits roll
  • Tails: Where are you going?
  • Eggman: Next time, I will pull this off without anyone's help. I will use my own power to take over the world.
  • Eggman: Next time we meet, all bets are off!
  • Tails: Same here!
These lines were omitted from the ending credits.


Quotes Details
Tails: Something's on the radar! We are very close! This line was intended for Route 101.
Rouge: The signal is strong... The emerald's close! Yes! I've got it! This line was intended for Route 280.
Dr. Eggman: Hahahaha! What's wrong?! Ready to surrender?

Dr. Eggman: Hahahaha! Now, give me the emerald!

Rouge: Now it's my turn to take what's mine.

Shadow: Tch! Not even close.

Sonic: Uh! My emerald! Give it back!

Sonic: What's up? Ready to surrender?!

Tails: Take that, Eggman! You ready to give up?

These lines were intended for character bosses when the player lost to them.
Sonic: It's no use!

Sonic: Heh! Is that all you got?

These lines were intended for the Shadow vs. Sonic fights.
Shadow: I'll show you the power of the real ultimate lifeform! This line was intended for the Biolizard boss battle.

Japanese idle lines

In Sonic Adventure 2, the characters have two unique idle lines per Stage. However, in the Japanese voice files of the game, Sonic and Knuckles each have a third unique quote for Final Rush and Meteor Herd respectively.

Quotes Details
Sonic: オレの足のついてるほうが地面さ!そうだろ? (My feet would rather stick to the ground! Isn't that right?) This line was intended for Final Rush.
Knuckles: 隕石を素手で掘ってるヤツなんてオレくらいだぜ! (I'm the one who's digging into a Meteorite with my bare hands!) This line was intended for Meteor Herd.

Menu themes

There are a few lines that the default menu voice never says in Sonic Adventure 2:

Quotes Details
Type Select There is no menu where these lines are said.
Emblem Records. For some reason, the default menu voice never says these lines despite other themes doing so just fine.
Kart Racing.

Secretary Variant

The secretary theme has a variant of all lines where the player is referred to as "Mr. President" in Sonic Adventure 2 2.

Secretary: Which story do you wish to try, Mr. President?
Secretary: Please choose a scene, Mr. President.
Secretary: Please choose a character. Mr. President.
Secretary: Is this the stage you would like to go to, Mr. President?
Secretary: Which story are you interested in, Mr. President?
Secretary: Please take a look at your past results, Mr. President.
Secretary: Consider which one you prefer, Mr. President.
Secretary: Which game would you like to play, Mr. President?
Secretary: You can change things to your liking here, Mr. President.
Secretary: Which music would you like to listen to, Mr. President?
Secretary: Please enter your ID and password, Mr. President.
Secretary: Please choose a file, Mr. President.
Secretary: Is there a memory card in your controller, Mr. President?
Secretary: There's just not enough memory to save your game, Mr. President.
Secretary: Well done, Mr. President.
Secretary: Is this okay with you, Mr. President?
Secretary: Check how others rank in the world, Mr. President.
Secretary: This is the result of the emblems collected so far, Mr. President.
Secretary: This is the kart driving game, Mr. President.
Secretary: Here are the events downloaded so far, Mr. President.
Secretary: Would you like to customise the main menu, Mr. President?
Secretary: Please make your selection carefully, Mr. President.
Secretary: Accessing the central computer, Mr. President.

World Rankings

Default menu voice: World Ranking
Amy: See how you rank with your friends around the world!
Omochao: You can compete with people around the world!
Dr. Eggman: World conquest is your goal!
Knuckles: Find out how you rank with those around the world!
Maria: You can see the rankings of people around the world!
Rouge: There's only one number 1!
Shadow: World Rankings
Secretary: Check how others rank in the world.
Sonic: Check out World Rankings!
Tails: Compete with people around the world!
Default menu voice: Access to the database.
Amy: Updating the database!
Omochao: Updating the database!
Dr. Eggman: Updating the database!
Knuckles: Connecting to the database.
Maria: Updating the database!
Rouge : Accessing the server.
Shadow: Update the database.
Secretary: Accessing the central computer.
Sonic: Updating database.
Tails: Connecting to the internet!
Amy: Enter your ID and password.
Omochao: Enter your ID and password.
Eggman: Enter your ID and password.
Knuckles: Enter your ID and password.
Maria: Tell me your ID and password!
Rouge: Enter your ID and password.
Shadow: Enter your ID and password.
Secretary: Please enter your ID and password.
Sonic: Enter your ID and password.
Tails: Enter your ID and password.


Some major lines said by Omochao were made for the game, but were left unused.[5] These include:

Quotes Details
When the health gauge at the top of the screen becomes zero, you die. Referring to Tails and Eggman's Health Gauge. The line in the final version of the game says it is at the bottom of the screen.
This is the lantern room. Aren't the blue flames pretty? This line was intended for Aquatic Mine.
This is the ghost. There are a lot of spirits here. This line was intended for Aquatic Mine.
Watch the enemy detector, which is next to the emerald radar! If the detector lights up, be careful! This line explains how Rouge's intended radar for the Egg Beetle would have worked in the Egg Quarters.
Don't let go of the analog thumb pad while doing the loop-de-loop! This line was intended for Metal Harbor.
This is the bumpy planet. This line was intended for Mad Space.
  • This is the dimpled meteorite. Looks like you can't go up!
  • This is the huge meteorite. Beware of falling meteorites!
  • This is the small meteorite. Watch for dangerous traps!
  • This is the holy meteorite. If you fall in, you die.
  • This is the cracked meteorite.
  • This is the huge meteorite. Beware of falling meteorites!
  • This is the meteorite with a huge wall.
  • This is the tunnel meteorite.
All these lines were Intended for Meteor Herd. These messages suggest the Stage was planned to be different at some point, and use different types of Meteorites.
  • Be careful of the traps that are around here.
  • Attack Sonic when he is trapped and weakened.
These lines were intended for the second battle Shadow vs. Sonic fight.
To avoid the missile, hide behind the wall. This line is intended for the second battle Tails vs. Eggman.
Special attacks are awarded after collecting 20, 50 and 100 rings. This line points to an earlier requirement for special attacks. The line that is used mentions the correct requirements of 20, 40 and 60 rings.
Hi, I'm Omochao! Let me be your guide! Select the category that you would like to explore.
You can download a new scenario of Chao Adventure from the library! This line was intended for a planned downloadable scenario for Chao Adventure.
There is also the black market, where you can download a lot of surprises! This line was intended for the Black Market, which was not present in the Dreamcast version of the game.
To visit the Chao Kindergarten, you have to go online. Make sure to ask your parents first! The Chao Kindergarten is so much fun! This line was intended for the Chao Kindergarten. The Chao Kindergarten was originally going to be online exclusive.
A message for the Chao Kindergarten. Check the bulletin board! This lines describes that at some point, players would be able to access a bulletin board system in the actual Kindergarten.
Visit the parks and classrooms to meet new friends from around the world! The place of which this line speaks of is inaccessible in the final version of the game.
I can't believe you cleared the stage holding me! By hacking Sonic or Shadow into some stages they otherwise are not able to enter and holding an Omochao when reaching a goal ring, this line is heard.
What are you thinking, trying to finish this stage with me? This line would have appeared if the player moonjumps to the goal with an Omochao in Wild Canyon.
All I can see is water. Where is my home? This line would have appeared if the player moonjumps to the goal with an Omochao in Metal Harbor.
I gotta get outta here before the island blows up! This line would have appeared after Green Forest
Wow, that was scary. I'm going home to watch TV. This line would have appeared if the player moonjumps to the goal with an Omochao in Pyramid Cave.
Where am I? Somebody help me. This line would have appeared if the player moonjumps to the goal with an Omochao in Death Chamber.
How'd I get into outer space? Oh well. This line would have appeared if the player moonjumps to the goal with an Omochao in Meteor Herd.
I'm going to play with the turtle now! This line would have appeared if the player carries Omochao to the goal ring with Sonic/Shadow in Dry Lagoon (through hacking).
I feel dizzy. This line would have appeared when carrying Omochao to the goal ring in Radical Highway. However, it can only be done with moon jumping.
Let me out of this safe! This line would have appeared if the player carries Omochao to the goal ring with Sonic/Shadow in Security Hall (through hacking).
Did you know the doctor's mustache is fake? In Lego Dimensions, this voice clip is referenced in the Sonic Pack.
I wonder how Big is doing...
Made in the U.S.A. for our fans!
My allowance is all gone!
Don't make fun of me!
Am I annoying you?
The Chao Kindergarten is so much fun! Omochao wants to go the Chao Kindergarten!
Uh, oh! Your Chao has become a dark chao. I don't know what to do
A new gate has opened
You can download a new scenario of Chao Adventure from the library The scrapped scenario option.
Try the screw kick technique. Full circle on the analog thumb pad, plus B button This line would have appeared for Rouge's Spiral Upper
In certain places, you can perform action combos to score technique points
press A button while in midair to glide. But you already knew that
When the health gauge at the top of the screen becomes zero, you die!
The Sunglasses will allow you to see things you couldn't before. It may even help you locate the emeralds quicker
Did you get the shovel claw? In mid-jump press B button to dig into the ground
There are three Master Emeralds hidden in this stage. Use your radar and hints to find them all
Let me tell you about Sonic/Tails/Knuckles and Shadow/Eggman/Rouge games
I'll use my propeller to fly in space. Why is that?
Get the hammer gloves and use them to break open the steel containers
Ow-owch! Chao doctor, help me!
Try the Magic Hand technique. It turns enemies into balls. Use these balls to defeat other enemies
After picking up an item, hold B button to shake it
To bust a trick on the rail, press A button at the right time to perform cool tricks
Watch the enemy detector which is next to the emerald radar. If the detector lights up, be careful
These ghosts sure like teasing you. Kinda scary though
Be careful of the artificial chaos' sting. It hurts!
I sense an electrical disturbance here. The detector is not working right About the Hint Boxes in Mad Space.
Omochao knows everything!
Omochao wants to be Chao!
Phew! That big truck scared me. This line would have appeared in City Escape in Sonic Adventure 2: Battle.
Hmm... this looks like a game I've seen before. This line would have appeared in Crazy Gadget in Sonic Adventure 2: Battle (note: the quote is a reference to the Tetris game).
This fog reminds me of San Francisco. Used in White Jungle in Sonic Adventure 2: Battle.

Unused Chao Doctor lines

In Sonic Adventure 2 the Chao Doctor in the Kindergarten would have described the player's Chao with a variety of lines which were removed in subsequent ports. Among these lines are those that describe the player character's relationship with the Chao. Surprisingly, when viewing the game's files, it can be seen that the Chao Doctor also has lines for Amy:

  • "Looks like this Chao likes Amy a lot."
  • "Looks like this Chao likes Amy."
  • "Looks like this Chao wants to be friends with Amy."
  • "Looks like this Chao does not like Amy."
  • "Looks like this Chao hates Amy."

Continue music

The Continue music for Sonic Adventure was carried over to Sonic Adventure 2. However, due to the latter game not having the "Continue" system, the music was unused.

Unused missions texts

Originally, there were three test levels known as "BASIC TEST", "KNUCKLES TEST" and "SONIC TEST." Although "BASIC TEST" would later be included in the GameCube version, all three levels are absent from the Dreamcast version, while the other two are absent from the GameCube version. However, the mission text and some textures for the levels are still found in the game files:

Level 0 (Basic Test)

  • 1st Mission: Make sure we debug this!
  • 2nd Mission: Find 100 bugs!
  • 3rd Mission: Find bugs that you could not find!
  • 4th Mission: Debugged in 2 minutes!
  • Last Mission: Try bug 0!

Level 2 (Sonic Test)

  • 1st Mission: This stage is cool!

Knuckles Test

A Japanese hint for "KNUCKLES TEST" can be found in the game files. It contains the following string repeated five times:

  • "このメッセージはテストナリよ。" (Kono messēji wa tesutonari yo.?) which when translated means "This message is for a test".

Super Sonic and Super Shadow

Super Sonic and Super Shadow as they appear in the 2P mode selection.

The unused icons for both Super Sonic and Super Shadow.

Within the game's text, there are lines indicating that Super Sonic and Super Shadow were meant to be unlockable characters in the game's 2P Vs. mode which could be accessed through the same method as the alternate costumes:

"Congratulations! You've cleared Green Hill with Rank A. Strongest characters are now available to use in Sonic and Shadow 2P versus mode."

They also had profiles that read "SUPER SONIC/SUPER SHADOW Powered by the 7 Chaos Emeralds. Amazing speed and moves, but dies if rings are lost." When they are selected, a total of six stars are displayed for both characters instead of five. However, these costumes are incomplete; while they display animations unique to them when selected (animations which are seen while they are switching places during the FinalHazard's boss battle), the game will only load the regular Sonic and/or Shadow for the race.


Unused Sonic Adventure 2: Battle's intro

The files for the original intro event from the Dreamcast version of the game can be found unused in Sonic Adventure 2: Battle's event directory. The scene can be accessed from the Event Test in the debug menu, but it does not play.

Despite this, there seems to have been some work done on it prior to having been scrapped for the port's Radical Highway sequence. Accessing the textures for the scene reveals that they are slightly different to the ones used in the original game.

Missing intro effects

When the intro of the Sonic Adventure 2: Battle port ends, the logo of the port appears. This logo is portrayed in 3D and therefore, there are two versions of it - one using the Japanese logo and one using the English logo. However, due to an oversight, the video file that stores the special effects (glowing effects) for the English logo is left unused and the video file that stores the special effects for the Japanese logo is used for both the English and the Japanese logos. As a result, the glowing effect does not match with the English text of the logo.

In the Sonic Adventure 2(2012) version, this issue was fixed.

Unused menu themes

Character menu themes for the game were originally meant to be downloaded online. However, the Shadow, Amy, Omochao, Maria, and Secretary themes were never made available, therefore making their audio and graphics unused. The themes are still available in Sonic Adventure 2: Battle, with the Amy, Omochao, Maria, and Secretary themes being unlockable in the game.

Prototype differences

First video

GUN Military Truck sequence

The early GUN Military Truck

  • In early screenshots, the GUN Military Truck had a design different from the final version.


  • Judging by the first screenshots of the game, Sonic was going to be playable in Sky Rail.
  • In the trailers of the game, Sonic is seen breathing heavily in Green Forest. For some reason his torso is heavily darkened.
  • During the game's E3 2000 trailer Sonic is seen talking in an unknown cutscene. It is the first to show off that Sonic has separate fingers, but also shows his new mouth position, which looks strangely odd in this cutscene. It also looks quite blurred and like a texture, unlike the final version.
  • There is also a second cutscene where Sonic points at something. This camera is different in the final version where he uses a similar animation to call out Shadow. The area where it is shot in is different from the boss battle area.
  • Sand Ocean's music is changed between the alpha and final versions of the game.


The early design.

  • Early pictures showing that Sonic Adventure 2: Battle was going to work without a VMU were distributed for a short while after the game was announced. From this version to the final there are a lot of cosmetic changes.
    • Firstly, the GBA in the prototype is red, and has the 'GAMEBOY ADVANCE' bootup screen plastered on the front. In the final game, the GBA is white, and has a parody of the bootup screen with "CHAO ADVENTURE" written on it instead.
    • Another cosmetic change was the color of the booth. The prototype is yellow with green, but the final is blue with orange.

Unused text

Early level and boss list

In the game files, specifically located under "TEXT_E.prs", is an early level and boss list which lacks several stages from in the final game and features different boss names:

  • The list contains several test stages for several characters.
  • An unknown level/boss listed as "No Name".
  • The Egg Golem is just named "Golem", and the Biolizard is named "The Biohazard".

Cannon's Core hint files

Inside of the game files of Cannon's Core, there exist hint files for both Knuckles and Rouge, however, their contents appear to be just copies of Wild Canyon and Dry Lagoon's Japanese hints.


Sonic Adventure 2: The Trial

The version's title screen

A demo/prototype of Sonic Adventure 2 which was released with Phantasy Star Online for the Dreamcast as a bonus disc. The only playable stage is City Escape with a slightly different instrumental version of the song playing as BGM. In this version Sonic wears his traditional shoes instead of his 2G Hi-Speed Shoes and his shade of blue is less darker than in the final version of the game, the cutscenes' subtitles and also some of the sound effects are different as well. Some of the posters in City Escape are different and are promoting PSO. After finishing City Escape a trailer is played which lacks Miles "Tails" Prower and Rouge the Bat leading to the belief that they were added later in development.

Other characters icons

During the early stages of Sonic Adventure 2, it was rumored that only Sonic, Knuckles, and Eggman would be playable characters. This is supported by the video that plays in the demo if the title screen is left idle for long enough, which only features the gameplay of Sonic, Knuckles, and Eggman. Whether the rumor is true or not, the others characters were implemented into the game at the time of the demo's release, because they have icons for 1-Up Item Boxes.

Unused Power-Ups

The Bomb and the Health power-ups were unused in this version. However, the Random Ring Bonuses are still unused in both versions.


  • A stripped-down version of Multiplayer Mode is present in the demo, but it cannot be activated through normal means and will crash after completing the stage due to the other stages not being present in this version.
  • The demo version of the multiplayer lacks certain features, such as a functioning split-screen.
  • In the final version of the game, the player has the option of playing a best of three matches or a best of one match. In the demo version, the best of three matches is the only mode that exists.
  • Sonic is missing his Light Speed Shoes in this version.
  • Sonic Wind has a different name and animation in the demo version. In the demo, the attack is called "Long Range Homing" and contains a swirl of bright colors in comparison to the rough blue swirl of the final version of the game.
The Trial version Final version
SonicAdventure2TheTrial longrangehoming.png SonicAdventure2 sonicwind.png
Two-player win indicator

Unused multiplayer icon in the demo.

The graphics displayed on the bottom of each player's screen during multiplayer are on the ROM. The demo does not have two-player at all. The second version was slightly transparent, so a black background was added for visibility.

Other unused graphics

There are more textures used on objects outside City Escape, including the Mystic Melody door, textures for Sonic's Level Up Items, the Hint Box for Knuckles'/Rouge's Stages, and the textures for an uncollectable Level Up Item, despite the other Stages not being available yet.

Cutscene differences

  • Sonic never wears his 2G Hi-Speed Shoes in the cutscenes. In the final version, Sonic starts out with his regular shoes, but are swapped midway through.
  • In the first cutscene in the Hero Story of the final version, music plays lightly in the background while the GUN pilot communicates. The music changes to a more exciting song once Sonic busts out of the helicopter. In the demo, no music plays until Sonic busts out.
  • A notable difference in the first cutscene in the Hero Story of the demo is that the GUN pilot says "What?!" in the final. In the demo, this was translated as "What the hell?".


  • The font used in the demo for the subtitles is the same as the font used for the Sonic Adventure subtitles. This same font is used in the mission statements, button prompts, and the pause menu. In the final, the font used for all the text is Comic Sans.
  • The pause menu has a slightly different design.
  • The Light Speed Shoes are fully functional, but Sonic only wears them in the gameplay demo. Like his regular shoes, these also have a different design compared to the final version of the game.
  • The Flame Ring's Fire Somersault has a simpler effect in this version, lacking the fire in front of Sonic.
  • The Magic Hands have no upgrade model.


Early City Escape track
  • The City Escape track does not include vocals in this version, so an instrumental is featured instead.
  • The whistle used to call out Animals, as well as the sound an Animal makes when the player get it, is erroneously played at a lower sample rate and are as a result significantly shorter in length and higher in pitch.
  • There is a small click noise when Sonic gets on a Grind Rail in the demo.
  • When the player's performance grade hits the screen, it makes the emblem jingle as opposed to the metallic thud sound in the final version.


  • When Sonic pulls off a "Nice!" trick in City Escape, he does a front flip as opposed to a regular turn of the board seen in the final version.
  • When Sonic pulls off an "Awesome!" trick in City Escape, he essentially does a version of the "Cool!" trick that includes more turns. In the final version, this became a rotating, high-speed turning trick.


  • The best item the player can get from a Point Marker is a regular Shield, not the Lightning Shield. Because of this, it is possible to get a Lightning Shield in the stage, and then have it replaced with a regular shield at a Point Marker.
  • The Bounce Bracelet has very dodgy collision in this version. Using the Bounce Attack can cause Sonic to clip through objects such as Steel Containers.

Stage differences

  • The mission for the demo is simply "Find the Goal Ring." It is so labeled as the first mission even though there are no other missions available. In the final version, the first mission of City Escape is "Escape from the military pursuit!"
  • There is no radio call from the police to all the citizens telling them about Sonic at the beginning of the stage.
  • Many of the city's posters are different. Notably, there are no Soap posters yet.
  • Shortly after the boarding segment, there is an area where Sonic is led straight up a ramp and onto a platform. From this platform, a 10 Rings Item Box can be hit with Sonic's Homing Attack, and from there he can home forward onto the ledge and out onto a street. On the demo, this Item Box is a bit further away than it is on the final. While the capsule can still be reached either way, the capsule was moved closer so that it was slightly easier to get. There are also more platforms underneath this capsule, and they were all reorganized so that it is much easier for newer players.
  • When Sonic is being chased by the GUN Military Truck, there is a 20-Ring Super Ring Item Box at the end of the first ramp, like it was supposed to be obtained by Sonic doing a trick off the ramp. There are no Item Box in the final version.
  • The total number of Rings in City Escape is set at 467 in the demo, but in the final version this was lowered to 436.
  • In Metal Harbor, if one were to play Metal Harbor in Sonic Adventure 2 with a second controller plugged in and press Y Button Dreamcast.png on that second controller, Sonic will start using his boarding mechanics, even though he does not have a board. This is most likely a debug function that was not properly disabled before release, seeing as having this left in does not give any advantage to completing the level. This was fixed in Sonic Adventure 2: Battle.[6]
  • If the player attempts to load other levels in the demo, they will be presented with a placeholder title card displaying the name of the level. In the final version, attempting to load a level that does not exist will just cause the game to freeze.

Sonic Adventure 2 [Preview]

The preview version of the game was sent to the press as a sneak preview. One of the most notable differences from the final version in this preview is the menu screen which allows the player to choose between the Hero or Dark side. Upon selecting a side, the player can choose to play with any of the side's corresponding characters.

There is also a 2P vs. mode in this release. Here, the player can choose between three battles: Sonic vs. Shadow, Tails vs. Eggman and Rouge vs. Knuckles. There are some other differences in this version from the final version, such as different sound effects, music tracks and voices.

This version seems to lack proper sound programming since the musics and voice clips are played almost completely randomly.

General differences

  • The title screen is very close to the one used in the final version of the game. Under the game's logo, [PREVIEW] is added, there is a glow effect behind the logo not present in the final version and the text in the bottom left corner is slightly different.
  • The most significant difference from the final version was the Menu screen. The menu is basic and allows the player to choose a "side" to play as, Good or Bad. A 2 Player Versus option was also available.
  • The Good side (Sonic, Tails, and Knuckles) have four Stages available. Sonic has two Stages selectable, City Escape and Green Forest. Tails plays in Prison Lane, and Knuckles plays in Wild Canyon. The Bad side (Shadow, Rouge, and Eggman) have three Stages available. Shadow plays in Radical Highway, Eggman plays in Sand Ocean, and Rouge plays in Dry Lagoon.
  • Another option on the Menu screen "2P V.S." gives the player three Stages to play in. The player can play as Shadow or Sonic in Green Forest, Knuckles or Rouge in Wild Canyon, or Tails and Eggman on Prison Island.
  • Big the Cat does not make any cameos here as opposed to the final version.
  • The Voices and music are mishmashed randomly together during cutscenes. Various sounds and voice clips from both English and Japanese tracks would sporadically play in random order, overlapping each other. Sound had not been programmed to go with the cutscenes at this point in time.
  • The attacks' names do not show up in vs. mode. The player can still use them, but the only way to tell is if the character grunts.
  • The flashback scenes with Maria and everything before it are cut for the preview in Shadow's Radical Highway cutscene, leaving the scene much shorter than it is in the final version.
  • Sonic's Light Speed Shoes use the earlier model from The Trial in his cutscene.
  • Knuckles' upgrades cannot be seen normally in the game, but his Sunglasses have a different cutscene model. His Hammer Gloves were also removed from cutscenes in the final version.
The Preview version Final version
SonicAdventure2Preview KnucklesUpgrades.png SonicAdventure2 KnucklesUpgrades.png


  • When the player grabs the Flame Ring Level Up Item in Radical Highway, it did not lock the player into place and describe the item. Instead, gameplay continued as normal, while the text explaining the item was displayed on the bottom of the screen.
  • The Hint Boxes for Rouge and Knuckles are functional, but no text is programmed in them at this point.
  • Different sounds are played for the metal board sliding down road in City Escape, GUN robots activating and being deployed, connecting with Grind Rails, Tails and Eggman aiming their Lock-on modules, whistling sound, swinging on Green Forest vines and getting Animals.
  • When jumping off a ramp at the beginning of City Escape at slow speed, Sonic does a backflip instead of a 180 rotation.
  • Springs are almost colored in a more bright pink than a red.
  • All in-action voices are English, except Sonic's jumping noise which are in Japanese.
  • Knuckles and Rouge's climbing noises are very loud and incredibly different.
  • The music played while using Speed Up has some different notes.
  • Shadow's aura when jumping is quite different.
  • City Escape has no vocals, and while the general tune remains pretty much the same, many of the notes and riffs are completely different. Overall, it is quite different sounding than its final counterpart.
  • Dry Lagoon's music is muted, and there are crickets prominently chirping during gameplay (different sounding and louder than in the final).
  • When getting a rank at the end of a Stage, it plays the same sound from when getting an emblem.
  • There are no icons displayed on the VMU.
  • Like The Trial version, the font from Sonic Adventure is used for text rather than the final's Comic Sans.
  • Objects such as Containers are lit differently.
  • The posters in City Escape use the same textures as in the final version of the game with the exception of the Chao in Space and Pizza posters, which use the textures from The Trial version.
  • The Warp Wall in the hunting stages looks slightly different in this version.
The Preview version Final version
SonicAdventure2Preview diggingwall.png SonicAdventure2 diggingwall.png
  • The City Escape track uses the same instrumental featured in The Trial version.
  • The option for Japanese text and voices is in the game, but not used normally, as English is the default in this version.
  • Every Level Up Item is in this version, but only a handful of them are actually used.
  • The Bounce Bracelet has a buggy collision with objects. For example, without the Flame Ring, it can clip through Steel Containers.
  • The Mystic Melody is called "Ancient Melody" in this version.
  • The Rocket on the rocket platforms is too high and can be seen even when the platform is inactive.
  • The 2nd, 3rd, 4th and 5th missions are in the game, but the 5th mission (Hard mode) does not have a unique layout.
  • There are no 1-Ups in the lost Chao locations.
  • The platforms before the first Point Marker in City Escape are the same as those in The Trial version.
  • After completing any stage, the player will go back to the title screen. The only exception to this is City Escape, which will send the player to Green Forest.
  • The area where Sonic obtains the Ancient Light is completely empty, but the path to it still exists.
  • The indoor section of Wild Canyon does not have the correct lighting in this version.
  • The Warp Walls are mostly not present in this version. The only one that can be found is located behind the Steel Containers in Dry Lagoon.

The empty rooms in the Preview version.

  • The rooms accessed by the Warp Warp in Wild Canyon are completely empty. The objects for these rooms are actually floating out of bounds near the start of the stage.
  • Hint Boxes in Dry Lagoon have blank textboxes in this version.
  • Some enemies are in different positions compared to the final version of the game.
  • The area with the second and third pillars in Sand Ocean has a different object layout compared to that of the final version if the game. This includes an extra fence, a Wooden Container, and Springs.
    • In the area just after the fourth pillar, there are even more changes.
The Preview version Final version
SonicAdventure2Preview sandocean4th.png SonicAdventure2 sandocean4th.png

Unused/Early cutscene subtitle text

A scrapped conversation is found in the game files of the preview version, which was mostly going to be used in the cutscene where Sonic first meets Shadow. It has no voice clips or English equivalent. None of this exists in the final version of the game, but Shadow's first line and Sonic's response do make it into the Green Forest confrontation scene. Oddly enough, Shadow's second and last comments were partially used in the episode "Shadow Knows" of the anime series Sonic X:

  • Sonic: "で、そのエメラルド!どーするつもりだ。このニセモノが!" (So, what are you planning to do with that Emerald? You impostor!)
  • Shadow: "ニセモノ? フッ、フェイクは君のほうじゃないのか?いや…フェイクと呼ぶには…レベルが違いすぎるか?" (Impostor? Heh, aren't you the fake one here? No... aren't you on a completely different level... to be called a fake?)
  • Sonic: "いわせておけば!!" (That's the last straw!!)
  • Sonic: "消えた!?どこだ…" (He disappeared?! Where is he...)
  • Shadow: "なるほど確かに…姿形は似ているようだ。鏡に映る…影のようにな…。" (I see... We really do seem to look alike. A reflection in a mirror... you're like my shadow...)
  • Sonic: "チッ! なんてスピードだ!!いや、スピードじゃないな…。ワープ!?" (Tch! That speed!! No, that doesn't seem to be his speed... Warp?!)
  • Sonic: "カオスエメラルドの力を使って、時空をコントロールしているのか!?何者だコイツ…!!" (Is he controlling time and space by using the Chaos Emerald's power?! Who is he, anyway...!!)
  • Shadow: "僕の名はシャドウ。Pr.ジェラルドからカオスコントロールの力を与えられた唯一にして究極の存在。今は先を急ぐ。遊びは終わりだ。" (My name is Shadow. The greatest ultimate life form who was given the power of Chaos Control from Prof. Gerald. I'm in a hurry right now. Playtime is over.)

Sonic Adventure 2: Trial Version

The Sonic Adventure 2: Trial Version title screen.

The Sonic Adventure 2: Trial Version demo was given to certain stores in Japan. The build date of this demo was May 3, 2001, less than a month before the release of the final version of the game. It includes the same levels as Sonic Adventure 2: Preview, except the only playable characters in the main stages are Sonic and Shadow, and a multiplayer option.

Due to its build date, there are fewer differences from the final version of the game in this demo compared to previous ones, as well as several changes made specifically for this version. These differences give some insight into the last month of the game's development. The Trial Version included the Puru Puru Pack support, and a full motion video clip of Sonic Adventure 2.

Differences from the final version

The Magic Hands location in the Sonic Adventure 2: Trial Version.

  • Sonic and Shadow's Level Up Items have been replaced with life Item boxes in this version.
  • The dialogue at the start of City Escape is missing in this version.
  • Like in previous demos, the area where Sonic obtains the Magic Hands is different compared to the final game. This version also includes a Wooden container.
  • The trail of Rings in Radical Highway that lead to the area where Shadow obtains the Flame Ring is missing in this version.
  • The Rocket in the Flame Ring area has already been activated in this version, unlike in the other versions where the player must first break a Steel Container and press a switch.
  • The area with the third collapsing pillar in Sand Ocean is similar to the layout seen in Sonic Adventure 2: Preview, except it has three single Springs instead of one large one.

Sonic Adventure 2: Battle demos leftovers

Space World leftovers

Pieces of the title screen from the version that appeared at the game's announcement at Space World 2001 can be found in the final version's game files, which are still using the original logo and featuring a subtitle. The background of this version differs from the final version in that the Hero characters are displayed on the right side of the background image and the Dark characters on the left. The Chao are also in different locations. In addition, the floating orbs on the background are part of the background image itself rather than being separate graphical effects like in the final version.

Space World's theme Final version's theme
SonicAdventure2Battle ProtoTitleBG.png SonicAdventure2Battle FinalTitleBG.png

The coming soon banner, and the select menu in the Space World's version are also present in the final version's game files. The select menu for the demo could give the player the option to play either Green Forest or City Escape in single player or multiplayer.

Tokyo Game Show

The leftover sprites of the Tokyo Game Show demo also exist in the final version's files. They are extremely similar to the ones of the Space World demo version, and the only difference between them is that a Japanese "Sonic Adventure 2: Battle" logo is shown in place of the original English "Sonic Adventure 2" one in these sprites.

Unused, hidden graphics and other renders




Sonic Adventure 2 - The Trial (Dreamcast)


Sonic Adventure 2 - The Preview


  1. Sonic Adventure 2 - Early Green Forest layout. Youtube. JmTsHaW (19 January 2017). Retrieved on 21 April 2017.
  2. Sonic Adventure 2 - Invisible Rail in Meteor Herd. Youtube. rattleman123456 (22 August 2015). Retrieved on 24 September 2015.
  3. JmTsHaW (25 March 2016). SA2 - Unused 2P City Escape. Retrieved on 21 April 2017.
  4. [SA2B "All" the Unused Models]. Chao Island (11 May 2016). Retrieved on 14 September 2016.
  6. Sonic Adventure 2- Metal Harbour Boarding Glitch or Easter Egg (see description for details). YouTube (21 January 2013). Retrieved on 26 September 2015.

External links

Main article | Scripts (Hero, Dark, Last) | Staff | Glitches | Beta elements | Gallery | Re-releases (Battle, 2012)