Pitfall: The Lost Expedition

On the title screen, hold L1 + R1 and press:
Left, Square, Circle, Down, Square, X, Square, Circle - Bottomless Canteen
Left, Right, Circle, Up, Circle, Right, Left          - Unlock Hyper Punch Mode
Circle (2), Left, Right, Circle, Square, X, Up, Circle - Unlock Orig. Pitfall

 