To enter Debug Mode, play these sounds from the level select screen: 1, 9, 9, 2, 1, 1, 2, 4. Press Start and hold A. To start debugging, press B, then you can select any sprite in that level and put it on the screen. To select a different sprite, press A, and to place it on the screen, press C. Note that sprite selection is different from Zone to Zone. Also, instead of displaying the time elapsed, it displays the number of sprites currently on the screen.
Level Select
From the main screen, select Options. Select Sound Select and play sounds 19, 65, 9, 17, then push C. Press Start to return to the main screen, and when Sonic and Tails appear, hold A and press Start.
Ristar Codes
Code - Effect
DOFEEL - Time attack
ILOVEU - Level select
MUSEUM - Fight only bosses
MIEMIE - See hidden items
MAGURO - Tone deaf sounds
SUPER - Super hard mode
SUPERB - Very hard difficulty
XXXXXX - Cancel all codes
Unlock Blue Sphere game
Play Sonic the Hedgehog and Sonic 3D Blast 20 times each, exit to the title screen and then go back into the game select screen and Blue Sphere will now be unlocked.
Unlock Flicky
Play Mean Bean Machine at least 30 times to unlock Flicky. You can just enter the game and exit as soon as it loads up. After the 30th time, exit to the title screen and enter the games menu again.
Unlock Hints
To unlock the Hints text for each game, keep it open for three hours. You don't have to play the game, just let it run. After three hours, exit out, and when you reenter the game, or check the Hints menu in the Options area, that game's hints will be available.
Unlock Knuckles in Sonic 2
Play Sonic the Hedgehog 2 and Sonic Spinball 20 times each.
Unlock Ristar
Play Blue Sphere, Flicky, Knuckles in Sonic 2 and Sonic 3 and Knuckles 20 times.
Unlock Sonic 3 & Knuckles
Play Sonic 3 20 times and Sonic & Knuckles 20 times.
Unlock The Ooze
Unlock everything except for Ristar.
Unlock The Ooze and Comix Zone games
Have a Sonic Heroes completed game save file on your Xbox hard drive. When you start the Sonic Mega Collection Plus game up, you will have Comix Zone and The Ooze unlocked from the start!
