Sonic Mega Collection - Platform: Gamecube
      
Sonic The Hedgehog, Level Select
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At the title screen, press Up, Down, Left, Right. 
Hold B to enter the Level Select screen. 

Sonic The Hedgehog, Debug mode
------------------------------
At the title screen, press 
Up, X, Down, X, Left, X, Right, Up, X, Down, X, Left, X, Right, X. 
Hold B and press Start, then while playing, press A. 

Sonic The Hedgehog 2, Level Select
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At the Sound Test selection, select sounds 19, 65, 9 & 17. 
Hold X and press Start, then hold B and press Start at the Sonic/Tails 
screen. 

Sonic The Hedgehog 2, Debug Mode
--------------------------------
First enable Level Select. Then, at the Sound Test selection, select 
sounds 1, 9, 9, 2, 1, 1, 2, 4. Select a level and hold B + Start until 
the game begins. 

Sonic The Hedgehog 3, Level select
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Right after you hear SEGA but before Sonic appears, press 
Up, Up, Down, Down, Up, Up, Up, Up. Then press Up at the 
title screen. 

Sonic The Hedgehog 3, Debug Mode
--------------------------------
First enable Level Select. Then hold B and press Start when selecting 
level. 

Sonic The Hedgehog 3, Bonus level
---------------------------------
First enable Level Select. Then at the Sound Test selection, 
play sounds 1, 3, 5, 7. 
Hightlight Special Stage 2, hold B and press Start.

Ristar, Level select
--------------------
Enter ILOVEU as a password. 

Ristar, Config mode
-------------------
Enter MAGURO as a password. 

Ristar, Time attack mode
------------------------
Enter DOFEEL as a password. 

Ristar, Boss mode
-----------------
Enter MUSEUM as a password. 

Ristar, Expert mode
-------------------
Enter SUPER or SUPERB as a password. 

Ristar, Reveal items
--------------------
Enter MIEMIE as a password. 

Ristar, View credits
--------------------
Enter AGES as a password. 

Ristar, Disable all codes
-------------------------
Enter XXXXXX as a password. 

Sonic 3D Blast, Level Select
----------------------------
At the Press Start sceen, press B, A, 
Right, A, X, Up, Down, A, Start.