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Sonic Adventure 2: Battle

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Title Screen

Sonic Adventure 2: Battle

Developer: Sonic Team USA
Publisher: Sega
Platform: GameCube
Released in JP: December 20, 2001
Released in US: February 11, 2002
Released in EU: May 3, 2002

AreasIcon.png This game has unused areas.
GraphicsIcon.png This game has unused graphics.
DebugIcon.png This game has debugging material.

Sonic Adventure 2: Battle was the first Sonic game for the GameCube, as well as the first official Sonic game on a Nintendo console. A port of Sonic Adventure 2, it stayed true to its predecessor while providing new features such as two-player mode and, for the most part, upgraded graphics. One thing it didn't fix was the cut-off dialogue.


SonicAdventure2 DiffScreen.png
Changes from the Dreamcast Version
Computer screens can be inconsistent.

Test Level

Using the (NTSC) Action Replay code 80U8-7RHQ-W728R H2E9-MAE2-U5PEE, one can access a test level. It contains several features including slope tests, pits, doorway/roll tests, an interactive test object, and a grinding rail.

However, there is a way to access this level in-game without any hacking as well, as can be seen in this video.

Debug Mode

SA2B Debug 1.png

The (NTSC) Action Replay code 9E7F-943M-6ACEJ QTG9-MTTU-ABNMK lets you access a debug mode that, when triggered, displays debug info on the bottom portion of the screen.

Playable Super Sonic and Super Shadow in 2P Mode

Why Sega...

At some point during development, Sonic and Shadow in their super forms were going to be either be alternate switched forms (like the unlockable skins) or treated as separate selectable characters for 2P Mode. Images for their names written in the stylized font are still in the disc.

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.

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

In the final game, completing Green Hill with an A rank doesn't give you anything.

Powered by the 
7 Chaos Emeralds.
Amazing speed and moves,
but dies if rings are lost.
Powered by the 
7 Chaos Emeralds.
Amazing speed and moves,
but dies if rings are lost.

These lines are similar to the descriptions for the other characters in 2P mode.

Cosmic Wall Oddity

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