Invincibility:
Select "Credits" at the options screen then press L1, Triangle, Up, Down,
Circle(2),Triangle, Square, Right, Square.
All weapons:
Select "Credits" at the options screen then press L1, Triangle, Up, Down,
Circle(2), Triangle, Square, Up, Circle.
Full ammunition:
Select "Credits" at the options screen then press L1, Triangle, Up, Down,
Circle(2),Triangle, Square, Left, Triangle.
Extra ammunition:
Select "Credits" at the options screen then press L1, Triangle, Up, Down,
Circle(2), Left(2), L1, L2.
One hit kill with firearms:
Select "Credits" at the options screen then press L1, Triangle, Up, Down,
Circle(2), Triangle, Square, Down, R1.
One hit kill with smack-jack, knife, or brass knuckle:
Select "Credits" at the options screen then press L1, Triangle, Up, Down,
Circle(2), Triangle, Square, Down, L1.
Expert mode:
Select "Credits" at the options screen then press Down(3), Triangle, Down(3),
Square, Left, Right for more challenging opponents.
Rapid fire:
Select "Credits" at the options screen then press L1, Triangle, Up, Down,
Circle(2), Up(3), Down.
Instant puzzle solution:
Select "Credits" at the options screen then press L1, Triangle, Up, Down,
Circle(2), Down(3), Up.
