Sonic Adventure DX
Gamecube
Enter the following codes at the Title Screen:
| Up, Up, Up, Up, Right, Left, Right, Left, Start | Level Select (Sonic Chaos) |
| Up, Up, Right, Right, Right, Down, Down, Down, Down, Down, Down, Left, Left, Left, Left, Left, Left, | Level Select (Sonic Labyrinth) |
| Hold Down/Left + A + B and press Start when Tails blinks the second time | Level Select (Sonic 2) |
| Down, Down, Up, Up, Left, Right, Left, Right, B, A | Sound Test (Sonic Chaos) |
| Press either Up or Down. | Sound test or Time attack (Sonic Triple Trouble.) |
At the Sound Test, play the following tracks in order:
| 0, 4, 2, 5, 5, 7 | Background Music on Fast Forward (Sonic Spinball) |
| 0, 2, 1, 5, 6, 6 | Level Select (Sonic Spinball) |
| 0, 9, 0, 1, 6, 8 | Zero Gravity (Sonic Spinball) |
| 0, 2, 1, 1, 6, 6 | Zoomed In View (Sonic Spinball) |
Sonic Chaos Level Select:
Once you have Sonic Chaos available in the Minigames section, press Up, Up, Down, Down, Right, Left, Right, Left, Start at the Title Screen.
Sonic Chaos Instant Chaos Emeralds:
At the Character Selection screen, press Up, Down, Up, Down, B, A, B, A, B, A.
Sonic Triple Trouble Level Select:
At the SEGA screen hold Up. Then when Knuckles touches the Red Emerald, hit Start.
Thanks to Revolution readers Raven, Ki Ati Mondo, Hatchet_hand, and Timmy Z!
