Invincibility:

Enter MDLDSSLR as a code.

Max Ougi

Enter RRDMLSDL as a code.

Unlimited Shuriken

Enter LMDRRMSR as a code.

Shuriken Loser

Enter LLMSRDMS as a code. Shuriken will no longer be available.

Endurance

Enter DMLDMRLD as a code. Healing items will no longer be available.

Sushi Party

Enter SLLMRSLD as a code. All healing items will be into Temaki Sushi.

Instant Death

Enter LDMSLRDD as a code. One enemy hit will kill the turtles.

Enemies 2X Power

Enter MSRLSMML as a code.

Enemies 2X Defense:

Enter SLRMLSSM as a code.

Turtles In Time mini-game

Teenage Mutant Ninja Turtles 2: Turtles In Time mini-game: Complete all sixteen missions in Episode 1.

Nightmare episodes

Nightmare episodes: Successfully complete Episodes 1, 2, and 3 to unlock the Nightmare episodes. Final Nightmare episode: Successfully complete all Nightmare episodes to unlock the Final Nightmare episode. Free mode Area 12 and 13: Successfully complete the Final Nightmare episode to unlock Free mode Area 12 and 13. Ultimate Turtle Scroll: Successfully complete Free mode Area 12 and 13 to unlock the Ultimate Turtle Scroll.

Password notes

Use the following key when entering the passwords. L: Leonardo M: Michaelangelo D: Donatello R: Raphael S: Shredder