Teenage Mutant Ninja Turtles Cheats (GameBoy Advance)

Press Up(2), Down(2), Left, Right, Left, Right, B, A at the title screen.

Complete all levels in normal mode to unlock the Shredder's Tower secret level.

Use the following key when entering the passwords.

L: Leonardo

M: Michaelangelo

D: Donatello

R: Raphael

S: Splinter

Casey Jones mode

Enter SRLMD as a password.

Splinter mode

Enter LSLML as a password.

Alternate Leonardo costume

Enter RSLMD as a password. Hold L or R when selecting Leonardo at the character selection
screen.

Alternate Donatello costume

Enter RRSLR as a password. Hold L or R when selecting Donatello at the character
selection screen.

Alternate Raphael costume

Enter SLSMM as a password. Hold L or R when selecting Raphael at the character selection
screen.

Alternate Michaelangelo costume

Enter RLSLS as a password. Hold L or R when selecting Michaelangelo at the character
selection screen.

Playmates toy database

Enter LSDRM as a password.

Alternate sound effects

Enter DDDML as a password.

Leonardo gains attacking power 

Enter LMLSD as a password.

Raphael gains attacking power

Enter RDSRL as a password.

Donatello gains attacking power

Enter DRLDS as a password.

Michaelangelo gains attacking power

Enter MSRMM as a password.

Michaelangelo has unlimited fire shurikens

and pizza always appears

Enter MSSLD as a password.

Leonardo has unlimited fire shurikens and

pizza always appears

Enter SSLDM as a password.

Raphael has double power-up effects

Enter RSSSR as a password.

Michaelangelo has double power-up effects:

Enter RLMSM as a password.

Donatello has double power-up effects:

Enter MLSDS as a password.

Leonardo has double power-up effects

Enter RSDMM as a password.

Donatello has double defense

Enter MLMLS as a password.

Leonardo has double defense

Enter LDSMS as a password.

Michaelangelo has double defense

Enter RLDDR as a password.

Raphael has double defense

Enter SDRML as a password.

Bonus course 1

Enter LSMMS as a password.

Bonus course 2

Enter SSLDM as a password.

Bonus course 3

Enter MSSLD as a password.

Bonus course 4

Enter SRLMD as a password.

Bonus course 5

Enter LSDRM as a password.