Game Guides, Cheats, Codes, Hints and Walkthroughs for Teenage Mutant Ninja Turtles on GameCube.

Password List
Enter these codes into the Password screen in the Options menu:

Alternate Costume (Raphael): SLSMM

Alternate Costume (Leonardo): RSLMD

Alternate Costume (Michaelangelo): RLSLS

Alternate Costume (Donatello): RRSLR

Attack Power Up (Raphael): RDSRL

Attack Power Up (Leonardo): LMLSD

Attack Power Up (Donatello): DRLDS

Defense Doubles (Leonardo): LDSMS

Defense Doubles (Donatello): MLMLS

Defense Doubles (Michaelangelo): MRRML

Defense Doubles (Raphael): SDRML

Defense Power Up (Michaelangelo): MSRMM

Change Sound Effects: DDDML

Power Up Effects Double (Raphael): LSMMS/RSSSR

Power Up Effects Double (Donatello): MLSDS

Power Up Effects Double (Michaelangelo): RLMSM

Power Up Effects Double (Leonardo): RSDMM

Unlimited Fire Shurikens/All Food is Pizza (Michaelangelo): MSSLD

Unlimited Shurikens (Leonardo): SSLDM

Unlock Playmates Toy Data Base: LSDRM

Unlock Splinter for Story Mode: LSLML

Hun
Successfully complete level 6 as Michaelangelo to unlock Hun in versus mode.

Oroku Saki
Defeat Saki as Raphael, Donatello, Michaelangelo, or Leonardo to unlock Oroku Saki in versus mode.

Shredder
Defeat Shredder as Raphael, Donatello, Michaelangelo, or Leonardo to unlock Shredder in versus mode.

Splinter
Successfully complete Dojo level 3 as Leonardo to unlock Splinter in versus mode.

Yoshi Hamato
Successfully complete Challenge Mode as Raphael, Donatello, Michaelangelo, or Leonardo to unlock Yoshi Hamato in versus mode.

Playmates Database
Enter LSDRM as a password to unlock the Playmates Database.

Improved Weapon For Michaelangelo
Enter MSRMM as a password, and Michaelangelo will get an improved weapon in Story Mode.

Holiday Outfits
Change your system’s date to either December 24th or 25th to see the turtles in Santa garb. Change it to October 31st to wear a pumpkin on your head.

Unleash the Secret of Gembu
Beat the third Dojo Stage with all four turtles to learn the Secret of Gembu maneuever. Use the move to damage everyone on the screen. You’ll have three opportunities per level to use it.

Unlock Challenge Mode
To unlock Challenge Mode, defeat Story Mode with all four turtles.

Unlock Characters For Vs. Mode
Fulfill the following criteria to unlock the corresponding characters for Vs. Mode:

Casey Jones: Beat Stage 1 with Raphael

Evil Turtlebot: Beat Stage 3 with any turtle

Hun: Beat Stage 6 with Michaelangelo

Splinter: Beat Dojo Stage 3 with Leonardo

Shredder: Beat Shredder with any turtle

Oroku Saki: Beat Saki with any turtle

Yoshi Hamato: Beat Challenge Mode with any turtle

Unlock Levels for Story Mode Stage Select
Complete a level to unlock it in Stage Select.

Team Attack
In 2-player mode, press X and SQUARE at the same time to get into a stance. Then have your teammate come next to you, face you, and then press X and SQUARE at the same time. You will perform a special team attack where you are thrown into enemies, hurting them.

Unlock Casey Jones
Go to options, then go to password and type in SRLMD. In story mode pick him and when you start an area press Y, he’ll say ”Casey Jones is on the job.”