Teenage Mutant Ninja Turtles 3: Mutant Nightmare cheats and cheat codes for XBox

Passwords
Go to the "Options" menu, then select "Input Password".
Enter one of the following passwords:

L: Leonardo
M: Michaelangelo
D: Donatello
R: Raphael
S: Shredder

Endurance: DMLDMRLD
Enemies Double Defense: SLRMLSSM
Enemies Double Power: MSRLSMML
Instant Death: LDMSLRDD
Invincibility: MDLDSSLR
Max Ougi: RRDMLSDL
Shuriken Loser: LLMSRDMS
Sushi Party: SLLMRSLD
Unlimited Shuriken: LMDRRMSR

Unlockables:
TMNT 2: Turtles In Time arcade game
Finish all 16 missions in Episode 1

Time Attack mode: Finish Score Attack mode
Nightmare episode: Finish Episodes 1 & 2 & 3
Last Nightmare episode: Finish all Nightmare episodes
Score Attack mode: Finish Mission6/Episode1
Free Battle Arena #1: Finish Mission1/Episode1
Free Battle Arena #2: Finish Mission5/Episode1
Free Battle Arena #3: Finish Mission10/Episode1
Free Area 12 and 13: Finish the last Nightmare episode
Ultimate Turtle Scroll: Finish Free mode Area 12 and 13
Movie Viewer: Collect any DVD
April O'Neil movie clip: Pick up the DVD in Free Battle Mission 1
Fugitoid movie clip: Pick up the DVD in Free Battle Mission 3
Hover Board movie clip: Pick up the DVD in Mission 5 Episode 1
Traximus movie clip: Find the DVD in Mission 8 Episode 1