Start game as usual, goto to the Password section under Options and
 enter the following codes:

 MDMSL - Michelangelo got an unlimited number of explosive Shuriken.
         Recovery items are increased.
 SRRDM - Leonardo got an unlimited number of Shuriken.
 LMMDR - Something happened with Raphael.
 LSDRM - Playmates database is unlocked.
 LMLSD - Something happened with Leonardo.
 RDSRL - Something happened with Raphael.
 DRLDS - Something happened with Donatello.
 MSRMM - Something happened with Michelangelo.
 LMSSL - Donatello got a new costume.  Press and hold either
         SHURIKEN CHANGE BUTTON or SPECIAL ATTACK BUTTON while
         selecting Donatello.
 SMLSR - Raphael got a new costume.  Press and hold either SHURIKEN
         CHANGE BUTTON or SPECIAL ATTACK BUTTON while selecting
         Raphael.
 MMMSL - Michelangelo got a new costume.  Press and hold either
         SHURIKEN CHANGE BUTTON or SPECIAL ATTACK BUTTON while
         selecting Michelangelo.
 MSRLR - Leonardo got a new costume.  Press and hold either SHURIKEN
         CHANGE BUTTON or SPECIAL ATTACK BUTTON while selecting
         Leonardo. Teenagers love PiZZA.
 LMLMS - Something happened with Michelangelo.
 SDDLS - Something happened with Donatello.
 LDDRS - Something happened with Leonardo
 DLDRS - Something happened with Raphael.
 LRLDD - Something happened with Donatello.
 SSRSL - Something happened with Leonardo
 LSSDR - Something happened with Michelangelo.
 DSRRS - Something happened with Raphael.
 LDRSM - Master Splinter is unlocked in the Story Mode.


 Letter abbreviations are as follows:

 M - Michelangelo
 D - Donatello
 L - Leonardo
 R - Raphael
 M - Master Splinter