Teenage Mutant Ninja Turtles

Alternate movement sound effects:
Press Up, Up, Down, Down, Left, Right, Left, Right, B, A at the title screen.

Password notes:
Use the following key when entering the passwords.

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

Change hit sound effects: Enter SMMRS
Donatello flashes red and has attack power-up: Enter DMDRS
Donatello has big bandanna and 2x attack: Enter DRLDS
Donatello has small bandanna and 2x defense: Enter SSSMR
Leonardo flashes red and has attack power-up: Enter LSLSR
Leonardo has big bandanna and 2x attack: Enter LMLSD
Leonardo has small bandanna and 2x defense: Enter MRLLM
Leonardo has unlimited normal shurikens: Enter SMRDM
Michaelangelo flashes red and has attack power-up: Enter MMSLR
Michaelangelo has big bandanna and 2x attack: Enter SMRDL
Michaelangelo has small bandanna and 2x defense: Enter MRRML
Michaelangelo has unlimited shurikens and pizza: Enter DRDSS
Michelangelo has improved weapon: Enter MSRMM
Playmates toy database: Enter LSDRM
Raphael flashes red and has attack power-up: Enter SLDSM or MSLLR
Raphael has big bandanna and 2x attack: Enter RDSRL
Raphael has small bandanna and 2x defense: Enter LRMDS

Unlockable alternate outfits:
Enter the following passwords, then hold L1 or R1 when selecting characters
at the character selection screen.

Different outfit for Donatello: Enter DDSMS
Different outfit for Leonardo: Enter LDMSR
Different outfit for Michaelangelo: Enter RRLMD
Different outfit for Raphael: Enter DMDML

Change movement sound effects
Go to the title screen, then enter
Up, Up, Down, Down, Left, Right, Left, Right, X, Circle.
If the codes is accepted, you will see a "Yeah" message.

Unlock challenge mode:
Finish the story mode as Raphael, Donatello, Michaelangelo, and Leonardo.

Unlock Shredder in versus mode:
Defeat Shredder with Raphael, Donatello, Michaelangelo, or Leonardo

Unlock Splinter in versus mode:
Finish Dojo level 3 with Leonardo

Unlock Yoshi Hamato in versus mode:
Finish challenge mode with Raphael, Donatello, Michaelangelo, or Leonardo

Unlock Casey Jones in versus mode:
Finish level 1 with Raphael

Unlock the Evil Turtlebot in versus mode:
Finish level 3 with Raphael, Donatello, Michaelangelo, or Leonardo

Unlock Hun in versus mode:
Finish level 6 with Michaelangelo

Unlock Oroku Saki in versus mode:
Defeat Saki with Raphael, Donatello, Michaelangelo, or Leonardo