Codes:
To enable the following cheat functions don't press any buttons during game play for over two
seconds, then complete one of button combinations below:

Function - Button Combination

     Full Energy - Up, Up, Down, Down, Right, Left, Right, Left, L1, R1 
     All Items - Up, Down, Left, Right, Triangle, X, Square 
     Open Exit Doors - Up, Down, Up, Down, L2, L2, R2, R2