Here are some cheats and tips for the game Teenage Mutant Ninja Turtles 3: Mutant Nightmare.
Cowabunga message:
Press Up(2), Down(2), Left, Right, Left, Right, B, A at the title
screen.
Turn crystals into bird eggs:
Enter “SRDSLLMS” as a code.
Turn crystals into pumpkins:
Enter “DRSSMRLD” as a code.
Turn crystals into snowmen:
Enter “LLDMSRMD” as a code.
Turn Life Icons into pizza:
Enter “DDRMLRDS” as a code.