Sonic Adventure 2: Battle
|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.
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.
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
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.