Finding Nemo Enter the following codes at the Title screen, then load a save or start a new game. Now pause during play and select the cheat option at the level select menu. Invincibility: Press Triangle, Square, Square, Circle, Circle ,Circle, Triangle, Triangle, Square, Square, Square, Circle, Circle, Circle, Circle, Square, Triangle, Circle, Circle, Circle, Square, Circle, Triangle, Circle, Circle, Square, Circle, Circle, Triangle, Circle, Square, Circle, Circle, Circle, Triangle. Level Select: Press Triangle, Triangle, Triangle, Square, Square, Circle, Square, Triangle, Circle, Square, Triangle, Square, Triangle, Square, Triangle, Circle, Triangle, Triangle. Secret Level: Press Triangle, Square, Circle, Circle, Square, Triangle, Triangle, Square, Circle, Circle, Square, Triangle, Triangle, Circle, Square, Triangle, Square, Circle, Circle, Square, Triangle. View Credits: Press Triangle, Square, Circle, Triangle, Triangle, Square, Circle, Triangle, Square, Circle, Triangle, Square, Square, Circle, Triangle, Square, Circle, Triangle, Square, Circle, Circle, Triangle, Square, Circle.