Cheat Codes:
To bring up the cheat code entry screen, pause the game and hold L R Triangle Left. Activate the following cheats by pressing the corresponding sequences of buttons:
Invincible officers – Triangle, Up, Right(3), Left(3).
Invincible player – Square, Up, Down(2), X, Left, Up, Down.
Invincible civilians – Up(3), Left, Down, Up(2), Right.
All weapons – X, Square, Triangle, X, Square, Triangle, Left, Right.
Infinite ammunition – Square(2), Triangle(2), Left, Right, X(2).
Player and officers fully promoted – Square(2), Triangle, Up(2), Down(2), Square.
Player invisible to others – Right, Left, Right, Left, Down, Up, Right, Left.
All characters visible – Left, Square, Up, Triangle, Down, X, Right(2).
Stop active timer – Square, Triangle, Left, Up, Down, X(2), Down.
Sounds not heard – Up, Down(2), Left, Up, Down(3).
Remixed credits – Up, Right, Left, Right, X, Right, X, Right.