Full Health
     Pause gameplay, hold L2 and press Circle, Circle, Circle, Square,
Square, R2, R1, Up, Circle, Square.

All FMV Sequences
     At  the Main Menu, hold L1 and press Left, Right, Left, Down, Up,
Down, R1, Circle, R2, Square.

Level Skip
     Pause  gameplay,  hold  L2 and press Circle, Left, Circle, Right,
Circle, Square, Left, Left, Right, R2.