Sonic Adventure DX Cheat Codes for Gamecube

kiss as amy
to kiss any sonic characters, beat amy's story once. go to station square with her and sonic will appear next to her. press the z button to kiss romantically.
submitted by: mike young

Unlock GameGear Games
Get a Sonic emblem or finish ten missions. The 'minigame' option will be added to the main menu.

Chao flying
To help your chao fly, give it a bird.

Chao Running
To help your chao run, give it a deer animal, a rabbit or a wallaby.

Chao strength
To increase your chao's strength, give it any of the following animals: elephant, gorilla, lion.

Chao swimming
To improve your chao's swimming ability, give it any of the following animals: seal, penguin, beaver.