Password notes: Use the following key when entering the passwords. L: Leonardo M: Michaelangelo D: Donatello R: Raphael S: Shredder Alternate Donatello costume: Enter SRSMM as a password. Hold L or R when selecting Donatello at the character selection screen. Alternate Leonardo costume: Enter RMMLL as a password. Hold L or R when selecting Leonardo at the character selection screen. Alternate Michaelangelo costume: Enter DLDSM as a password. Hold L or R when selecting Michaelangelo at the character selection screen. Alternate Raphael costume: Enter LMSDD as a password. Hold L or R when selecting Raphael at the character selection screen. Halloween costumes: Enter LRLMS as a password. The turtles will have pumpkins on their heads. Donatello has larger bandanna and double attack power: Enter DRLDS as a password. Leonardo has larger bandanna and double attack power: Enter LMLSD as a password. Michaelangelo has larger bandanna and double attack power: Enter SMRDL as a password. Raphael has larger bandanna and double attack power: Enter RDSRL as a password. Donatello has smaller bandanna and double defense power: Enter LLSMR as a password. Leonardo has smaller bandanna and double defense power: Enter SLDDS as a password. Michaelangelo has smaller bandanna and double defense power: Enter MRLLD as a password. Raphael has smaller bandanna and double defense power: Enter LSMDR as a password. Donatello flashes red and has double power-up effect: Enter SMLLR as a password. Leonardo flashes red and has double power-up effect: Enter MLLSR as a password. Raphael flashes red and has double power-up effect: Enter SRRLR as a password. Leonardo has unlimited normal shuriken: Enter MSSRD as a password. Michaelangelo has improved defense: Enter MSRMM as a password. Michaelangelo has unlimited exploding shuriken: Enter MRRSL as a password. Master Splinter: Enter LLMSR as a password to unlock Master Splinter in story mode. Playmates toy database: Enter LSDRM as a password. Alternate hit sound effects: Enter LSLSS as a password. Challenge mode: Successfully complete story mode as Raphael, Donatello, Michaelangelo, and Leonardo. Casey Jones: Successfully complete level 1 as Raphael to unlock Casey Jones in versus mode. He does not have any Dojo missions in his story and does not get nearly as many intermission sequences as the turtles, but he is much stronger. Also, you cannot have another player play as your "assist" character when you are Casey Jones. He is the best all-around single player character, as he takes out most enemies with a single hit. Evil Turtlebot: Successfully complete level 3 as Raphael, Donatello, Michaelangelo, or Leonardo to unlock the Evil Turtlebot in versus mode. 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. Alternate costumes: Set the Xbox system date to December 25 to see the turtles with a Christmas theme. Set the Xbox system date to October 31 to see the turtles with a Halloween theme.