Retro Game Cheats for Sonic Mega Collection (Gamecube)
Effect: Sonic 3: Infinite lives code
Effect: Unlock all stages in "Level warp"
Effect: enables level select.
When:
When you are in sound test mode.
How:
By playing these sounds in this order:19, 65, 09 and 17.hold x then press start.Once you get to the title screen, hold B and press start and you should get the stage select mode.
Submitted By:
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Effect: Sonic 2: Freeze Time code
Effect: Sonic 3: Always Have 99 Rings code
Effect: Sonic 3D Flickies Island: Max Lives code
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