Pitfall: The Lost Expedition
At the Title screen, hold L1 + R1 and enter the following cheats:
Play as Nicole:
Left, Up, Down, Up, Circle, Up.
Hyper punch mode:
Left, Right, Circle, Up, Circle, Right, Left.
Left, Square, Circle, Down, Square, X, Square, Circle
Circle, Circle, Left, Right, Circle, Square, X, Up, Circle. You can find it at the New Game screen.
Original Pitfall 2:
Left, Right, Left, Right, Triangle, Triangle, Triangle. You can find it at the New Game screen.
Thanks to Revolution readers Harry and june!