Press Up, Down, Down, Left, Right, Spacebar at the title screen to enter the level select.
Contributed By: AROSE009922.
Sound Test and More
At the title screen, press Down, Down, Down, Left, Right, Space to call up a Sound Test menu. Special things will happen if you select the following sound combinations and press Start.
Code Effect PCM12, DA11 Debug Mode PCM03, DA01 Displays artwork PCM04, DA21 Hercules Sonic PCM12, DA25 Human-Faced Sonic w/ Japanese Message PCM07, DA07 Play special stages PCM11, DA09 Revenge of the Mutant Artwork
Contributed By: adowilos.
View Developers High Scores
Press Right, Right, Up, Up, Down and Space at the title screen.
Contributed By: Millers C.
Always beat time attack mode
First input the debug mode cheat, then play through time attack mode. Whenever you finish the level, your time will always come up as 00'00"00.
Contributed By: Keith_da_Hybrid.
Lose the Game
The traditional way to get a ''Game Over'' is to lose all your lives. Well, here's a different way to lose the game.
Anywhere in the game, stand completely still for 3 minutes. Sonic will say ''I'm outta here!'' and jump off the screen, and you'll get a game over.
Contributed By: NTsui.
Use secrets without having to put in the code everytime
Find the file Sonic.ini on your computer and enter the following:
Contributed By: DJosef.
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You can submit a problem report for any non-working or fake code in the lists above.