Enter the following at the password screen:.
Effect Password Abyss S D S D R L D All-You-Can-Throw Shuriken R S R L R S M Challenge mode endurance MRMDRMD Fatal Blow L R S R D R D Health D S R D M R M Lose Shuriken R L M R D S L Mighty Turtle L S D R R D R New Nexus Turtle Outfit for Donatello D S L R D R M New Nexus Turtle Outfit for Leonardo L M R M D R D New Nexus Turtle Outfit for Michelangelo M L M R D R M New Nexus Turtle Outfit for Raphael R M S R M D R Nightmare S L S D R D L Pizza Paradise M R L M R M R Playmates added to Bonus Materials S R M L D D R Poison D R S L L S R Self Recovery D R M S R L R Squeaking M L D S R D M Super Defense Power L D R M R L M Super Offense Power (Attack x2) S D L S R L L Super-Tough R D S R M R L Toddling S S S M R D D
These are alternate ways to unlock the hidden characters.
Unlockable How to Unlock Casey Jones Unlocks automatically after 5 days. (Replaces Raphael) Karai Unlocks automatically after 35 days. (Replaces Michelangelo) Slashuur Unlocks automatically after 45 days. (Replaces Leonardo) Splinter Unlocks automatically after 10 days. (Replaces Donatello)
Contributed By: Knapster.
Splinter and Casey Jones
Unlockable How to Unlock Casey Jones Beat the Open Brawl Tournament and Casey Jones will be playable in place of Raphael Splinter Beat the game and you can use Splinter in place of Donatello
Contributed By: SoulWarrior.
Unlock Karai and Slashuur
Unlockable How to Unlock Karai Defeat her in the foot fight tournament Slashuur Defeat him in the battle nexus tournament
Contributed By: Koloradie.
Unlock original TMNT arcade game.
When on the rooftops in stage 9-1, start smashing the many crates to find an artifact. Take that artifact back home, and give it to April. Once she appraises it, she'll tell you that it is the original TMNT aracde game. Now go to the title screen, and go under options. The original TMNT arcade game will be there.
Contributed By: Megaman1981.
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