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Sonic Adventure 2 (2012)

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This page details one or more prototype versions of Sonic Adventure 2 (2012).

This article has just been started and needs the article basics added.
Help us out and add them.

To do:
Is there any differences known besides the launcher itself?

  • At least there are 5 builds that can be downloaded through console, may one of them doesn't works (thanks to rain on Hidden Palace discord about those builds):
download_depot 213610 213611 3148603639301720156 // Jul 25th 2012 06:11:23 UTC
download_depot 213610 213611 1638146811082978610 // Aug 29th 2012 08:18:44 UTC
download_depot 213610 213611 5866861155718773517 // Sep 05th 2012 08:26:55 UTC
download_depot 213610 213611 5984969471507468625 // Sep 10th 2012 06:36:45 UTC
download_depot 213610 213611 2881461178350562369 // Jun 16th 2014 08:08:25 UTC

This prototype is documented on Hidden Palace.

A prototype of Sonic Adventure 2 was discovered on October 3, 2025, dated August 10, 2012, over two months before its official release, prior to this one, there are 5 builds that can be downloaded on Steam console (see above), except this one. This build can be downloaded through the console: download_depot 213610 213611 8703847031516937408 // Aug 10th 2012 05:47:10 UTC.

As you see below, this build is labeled as "SONIC ADVENTURE 2 (Beta)" when you open the Launcher.exe, unsure if there are other builds is the same thing.

Launcher#

August 10th

Final
  • It had an Anti-Aliasing option, but it goes unused.

August 10th

Final

August 10th

Final
  • Both Player 1 and Player 2 keyboard settings is very different than the final.

v · t · e

The Sonic the Hedgehog series

Genesis

Sonic the Hedgehog (Prototype) • Sonic the Hedgehog 2 (Prototypes) • Sonic the Hedgehog 3 (Prototype) • Sonic & Knuckles (Prototypes) • Sonic 3 & Knuckles • Sonic 3D Blast (Prototypes) • Sonic the Hedgehog 3 (film)

Sega Master System

Sonic the Hedgehog (Prototype) • Sonic the Hedgehog 2 (Prototype) • Sonic Chaos (Prototypes) • Sonic Blast

Game Gear

Sonic the Hedgehog (Prototype) • Sonic the Hedgehog 2 (Prototype) • Sonic Chaos (Prototypes) • Sonic Triple Trouble (Prototypes) • Sonic Labyrinth • Sonic Blast (Prototypes)

Arcade

SegaSonic the Hedgehog (Prototype)

Sega CD

Sonic the Hedgehog CD (Prototypes‎)

32X

Knuckles' Chaotix (Prototypes)

Windows

Sonic the Hedgehog CD (1996) • Sonic 3D Blast • Sonic Heroes (Prototypes) • Sonic Adventure DX: Director's Cut (2004) (Demo) • Sonic the Hedgehog 4: Episode I (Prototypes) • Sonic the Hedgehog CD (2011) (Demo) • Sonic Adventure DX: Director's Cut (2011) • Sonic Generations (Demos) • Sonic the Hedgehog 4: Episode II (Prototype) • Sonic Adventure 2 (Prototype) • Sonic Lost World • Sonic Mania • Sonic Forces • Sonic Colors: Ultimate • Sonic Frontiers • Sonic Superstars • Sonic X Shadow Generations

Sega Saturn

Sonic X-treme • Sonic 3D Blast (Prototype)

Dreamcast

Sonic Adventure (Prototypes) • Sonic Adventure 2 (Prototypes)

Neo Geo Pocket Color

Sonic the Hedgehog Pocket Adventure (Prototypes)

GameCube

Sonic Adventure 2: Battle (Demo) • Sonic Adventure DX: Director's Cut (Prototypes) • Sonic Heroes (Prototypes) • Shadow the Hedgehog (Prototypes)

Game Boy Advance

Sonic Advance (Prototype) • Sonic Advance 2 (Prototype) • Sonic Advance 3 (Prototype) • Sonic the Hedgehog Genesis

PlayStation 2

Sonic Heroes (Prototypes) • Shadow the Hedgehog (Prototype) • Sonic Unleashed

Xbox

Sonic Heroes (Prototypes) • Shadow the Hedgehog (Prototype)

DoJa, BREW

Sonic the Hedgehog • Sonic the Hedgehog 2

J2ME

Sonic the Hedgehog • Sonic the Hedgehog 2 • Sonic Unleashed • Sonic Advance

N-Gage

Sonic N

Nintendo DS

Sonic Rush (Demo) • Sonic Rush Adventure • Sonic Colors (Demo)

Xbox 360

Sonic the Hedgehog (Prototypes) • Sonic Unleashed (Prototypes) • Sonic Adventure DX: Director's Cut (Prototypes) • Sonic the Hedgehog 4: Episode I (Prototypes) • Sonic Generations (Demos) •  Sonic the Hedgehog CD (2011) (Demos) • Sonic the Hedgehog 4: Episode II (Prototype) • Sonic Adventure 2 (Prototype)

Wii

Sonic and the Secret Rings • Sonic Unleashed • Sonic and the Black Knight • Sonic the Hedgehog 4: Episode I (Prototypes) • Sonic Colors

PlayStation 3

Sonic the Hedgehog (Prototypes) • Sonic Unleashed (Prototypes) • Sonic the Hedgehog 4: Episode I (Prototypes) • Sonic Generations (Demos) • Sonic the Hedgehog CD (2011) (Demo) • Sonic the Hedgehog 4: Episode II (Prototype) • Sonic Adventure 2 (Prototype)

Nintendo 3DS

Sonic Generations • Sonic Lost World

Wii U

Sonic Lost World

PlayStation 4, Xbox One, Nintendo Switch

Sonic Mania • Sonic Forces (Demo) • Sonic Colors: Ultimate • Sonic Frontiers • Sonic Superstars • Sonic X Shadow Generations

Amazon Luna

Sonic Mania • Sonic Colors: Ultimate • Sonic Frontiers • Sonic Superstars

PlayStation 5, Xbox Series X

Sonic Frontiers • Sonic Superstars • Sonic X Shadow Generations

Nintendo Switch 2

Sonic X Shadow Generations  • Sonic Frontiers Definitive Edition

iOS, Android, tvOS

Sonic Advance (2011) • Sonic the Hedgehog 4: Episode I (Prototypes) • Sonic the Hedgehog 4: Episode II (Prototype) • Sonic the Hedgehog • Sonic the Hedgehog 2 • Sonic the Hedgehog CD (Demo) • Sonic Advance (2014)

Ouya, NVIDIA Shield

Sonic the Hedgehog 4: Episode I (Prototypes) • Sonic the Hedgehog 4: Episode II (Prototype) • Sonic the Hedgehog CD (Demo)

Racing Games

Game Gear

Sonic Drift (Demo) • Sonic Drift 2

Windows

Sonic R • Sonic Riders (Prototype) • Sonic & SEGA All-Stars Racing • Sonic & All-Stars Racing Transformed • Team Sonic Racing • Sonic Racing: CrossWorlds (Prototypes)

Sega Saturn

Sonic R (Preview)

PlayStation 2

Sonic Riders (Prototypes) • Sonic Riders: Zero Gravity (Prototypes)

GameCube, Xbox

Sonic Riders (Prototypes)

Nintendo DS

Sonic & SEGA All-Stars Racing

PlayStation Portable

Sonic Rivals • Sonic Rivals 2

PlayStation 3

Sonic & SEGA All-Stars Racing • Sonic & All-Stars Racing Transformed

Xbox 360

Sonic & SEGA All-Stars Racing • Sonic & All-Stars Racing Transformed • Sonic Free Riders

Wii

Sonic & SEGA All-Stars Racing • Sonic Riders: Zero Gravity

Wii U

Sonic & All-Stars Racing Transformed

Nintendo 3DS

Sonic & All-Stars Racing Transformed

PlayStation 4, Xbox One, Nintendo Switch

Team Sonic Racing • Sonic Racing: CrossWorlds (Prototypes)

PlayStation 5, Xbox Series, Nintendo Switch 2

Sonic Racing: CrossWorlds (Prototypes)

Amazon Luna

Team Sonic Racing

Adobe Flash

Sonic Rivals Dash

Sports/Fighting Games

Genesis

Sonic the Hedgehog Spinball (Prototypes)

Sega Master System, Game Gear

Sonic Spinball (Prototypes)

Arcade

Sonic Championship • Mario & Sonic at the Rio 2016 Olympic Games

Game Boy Advance

Sonic Pinball Party • Sonic Battle

Nintendo DS

Mario & Sonic at the Olympic Games • Mario & Sonic at the Olympic Winter Games

Xbox 360

Sonic the Fighters

Wii

Mario & Sonic at the Olympic Games • Mario & Sonic at the Olympic Winter Games (Prototypes) • Mario & Sonic at the London 2012 Olympic Games

Nintendo 3DS

Mario & Sonic at the London 2012 Olympic Games

Wii U

Mario & Sonic at the Sochi 2014 Olympic Winter Games • Mario & Sonic at the Rio 2016 Olympic Games

Nintendo Switch

Mario & Sonic at the Olympic Games: Tokyo 2020

J2ME

Sonic the Hedgehog Golf • Sonic at the Olympic Games • Sonic Spinball

BREW

Sonic at the Olympic Games • Sonic Spinball

Puzzle Games

Genesis

Sonic Eraser • Dr. Robotnik's Mean Bean Machine (Prototypes)

Sega Master System, Game Gear

Dr. Robotnik's Mean Bean Machine

Arcade

SegaSonic Bros.

Adobe Flash

Sonic Jigsaw 2

Educational

Sega Master System

Sonic's Edusoft

Genesis

Wacky Worlds

Windows

Sonic's Schoolhouse (Prototype)

Sega Pico

Sonic the Hedgehog's Gameworld (Prototypes) • Tails and the Music Maker (Prototypes)

Leapster

Sonic X

LeapFrog Didj

Sonic the Hedgehog

Sonic Boom

Wii U

Rise of Lyric (Prototype)

Nintendo 3DS

Shattered Crystal • Fire & Ice

Adobe Flash

Link 'n Smash

Compilations

Genesis

Sonic Classics

Sega Saturn

Sonic Jam (Demo)

Windows

Sonic & Knuckles Collection • Sonic Mega Collection Plus • Sonic Origins

GameCube

Sonic Mega Collection (Prototype) • Sonic Gems Collection

PlayStation 2

Sonic Mega Collection Plus • Sonic Gems Collection

Xbox

Sonic Mega Collection Plus

Game Boy Advance

Combo Pack

Nintendo DS

Sonic Classic Collection

Xbox One, Xbox Series X, PlayStation 4, PlayStation 5, Nintendo Switch

Sonic Origins

Game.com

Sonic Jam

Plug & Play

Super Sonic Gold

Other

Game Gear

Tails' Skypatrol • Tails Adventures

Arcade

SegaSonic Popcorn Shop • SegaSonic Cosmo Fighter

Sega Saturn

Sonic the Hedgehog into Dreams...

Dreamcast

Sonic Shuffle (Prototype)

Game Boy Advance

Tiny Chao Garden

Nintendo DS

Sonic Chronicles: The Dark Brotherhood

Windows, Mac OS X

The Murder of Sonic the Hedgehog

J2ME

Sonic Jump (2005) • Sonic Jump (2007)

Adobe Flash

Sonic the Broad Jump • Sonic and the Black Knight: Knight in Training

iOS, Android

Sonic Jump • Sonic Dash • Sonic Runners • Sonic Runners Adventure (Prototype) • Sonic Rumble • Sonic Blitz

See Also

Flicky • Ristar