Level select:
Hold L1 and press Down, Up, Left(2), Circle, Right, Down, Square at the main menu.
Unlimited health:
Pause game play, then hold L1 and press Triange, Square, Triangle, Square,
Triangle, Circle, Triangle, Circle.
Unlimited rage:
Pause game play, then hold L1 and press Left, Down, Left, Down, Right, Up,
Right, Up.
All weapons:
Hold L1 and press Square, Circle, Down, Left, Circle(2), Triangle at the main menu.
Unlimited
ammunition:
Pause game play, then hold L1 and press Left, Circle, Right, Square, Up, Triangle,
Down, X.
Daywalker
difficulty setting:
Hold L1 and press Left, Circle, Up, Down, Square, Circle, X at the main
menu.
Escorted NPCs are
invincible:
Pause game play, then hold L1 and press Square, Circle, Triangle, X, Square,
Circle, Triangle, X. This code can only be enabled in levels that you are
escorting NPCs.