Hidden character
At the title screen, press Up(3), R1, L1, R2, L2, Down. If you entered the code correctly, you will hear the sound of a tone.
Infinite lives
At the title screen, press Up, Down, Left, Right, R1, L2, R2, L1. If you entered the code correctly, you will hear the sound of a tone.
Level select
At the title screen, press Down, Left, R1, R2, L1, L2. If you entered the code correctly, you will hear the sound of a tone.
Machine gun
Press Right(2), Square, Triangle, Right, Left, Down(2) at the title screen. A sound will confirm correct code entry.
Unlimited Super bombs
Press Square(2), Right, Down(2), Left, Square, Triangle at the title screen. A sound will confirm correct code entry.
View FMV sequences
Press Triangle(2), Down, Square, Up(2), Left, Triangle at the title screen. A sound will confirm correct code entry.