Auto fire
 
 At the title screen while the letters are in motion, press Up(2),
 Down(2), Circle, Triangle, Square. If you entered the code correctly,
 there will be an explosion. Then, press X to fire the laser during a
 game. 
 
 Infinite continues
 
 At the title screen, press Up, Right, Down, Left, X(3).
 
  Game Shark Codez:
 
                       
  Infinite Credits 
  80075898 000F