Press Up, Up, Down, Down, Left, Right, Left, Right, B, A at the title screen.
For the passwords below:
L = Leonardo
M = Michaelangelo
D = Donatello
R = Raphael
S = Splinter
| Password: | Result: |
| RRSLR | Alternate Donatello costume (hold L or R at character select scene) |
| RSLMD | Alternate Leonardo costume (hold L or R at character select scene) |
| RLSLS | Alternate Michaelangelo costume (hold L or R at character select scene) |
| SLSMM | Alternate Raphael costume (hold L or R at character select scene) |
| DDDML | Alternate sound effects |
| SRLMD | Casey Jones mode |
| DRLDS | Donatello gains attacking powe |
| MLMLS | Donatello has double defense |
| MLSDS | Donatello has double power-up effects |
| LMLSD | Leonardo gains attacking power |
| LDSMS | Leonardo has double defense |
| RSDMM | Leonardo has double power-up effects |
| SSLDM | Leonardo has unlimited fire shurikens and pizza always appears |
| MSRMM | Michaelangelo gains attacking power |
| RLDDR | Michaelangelo has double defense |
| RLMSM | Michaelangelo has double power-up effect |
| MSSLD | Michaelangelo has unlimited fire shurikens and pizza always appears |
| LSDRM | Playmates toy database |
| RDSRL | Raphael gains attacking power |
| SDRML | Raphael has double defense |
| RSSSR | Raphael has double power-up effects |
| LSLML | Splinter mode |
In password menu enter this password to unlock each course
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