Cheat Codes At the title screen, press [Down], [Down], [Down], [Left], [Right], [Space] to enable the sound test screen and chat mode. Then, enter and play one of the corresponding sound combinations to activate the corresponding cheat function:
Result
Cheat Code
Debug mode
PCM12, DA11
Bonus levels
PCM07, DA07
Human-faced Sonic
PCM12, DA25
Hercules Sonic
PCM04, DA21
Display artwork
PCM03, DA01
"Revenge of the Mutant Artwork"
PCM11, DA09
Level Select At the title screen, press [Up], [Down], [Down], [Left], [Right], [Space]. Note: Only a single level may be completed with this feature enabled.
No Gameshark Sonic CD Hacks found.
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