Sonic Adventure 2: Battle

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.

Test Level
Using the (NTSC) Action Replay code, 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
The (NTSC) Action Replay code 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


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 and both use the description of "Powered by the 7 Chaos Emeralds. Amazing speed and moves but dies if rings are lost".

For some reason (yet again), they were pulled from the game.