Play as Pogo
At the character select screen, hold L1 + L2 + R1 + R2, then press Select +
Start.
Cheats
Start a new game, then pause it. Hold L1 + L2 for 10 seconds and press any
of the following button sequence:
Ammo: Down, Right, Circle, Left, Right, Circle
Health: Right, Right, Left, Down, Down, Up, Triangle, Circle
Power: Down, Right, Down, Right, Triangle
Level Skip: X, R1, Triangle, R1, Square, Circle, R2, R2, X, Square,
Triangle, X
Invincibility: Square, Down, Down, Square, Down, Down, Circle
Max Firepower: Down, Right, Down, Right, Triangle
Extra Lives: Left, Down, Right, Triangle, Square, X, Circle
Extra Smart Bombs: R1, R2, X, Triangle, Square, Circle, R1, R2,
Circle, Circle, Square