Street Fighter 3: Third Strike Codes -

Alternate costumes:
Highlight a fighter at the character selection screen, then hold Start and press LP + HP + MK to use a secret costume. For additional costumes, you must have first completed the game with a fighter. Then, highlight that fighter at the character selection screen, and hold Start and press a Punch or Kick.


Alternate difficulties in Sean's bonus stage:
Hold + LP + MK + HP when reaching Sean's bonus stage for a harder difficulty. Hold + LK + MP + HK when reaching Sean's bonus stage for level 5.