Invincibility: Hold Select and quickly press Triangle(3)
at the main menu. Then, press Triangle, Circle(2),
Triangle, Circle, Square, X(2).
Level select: Hold Select and quickly press Triangle(3)
at the main menu. Then, press Square, X, Square,
Triangle, X, Triangle, Circle, Square.
Begin a new game, then hold Select and press Left
or Right at the mission introduction screen to choose a
new starting level.
Super gun: Hold Select and quickly press Triangle(3)
at the main menu. Then, press X, Circle, Triangle,
X(2), Circle, X, Square.
Invisibility: Hold Select and quickly press Triangle(3)
at the main menu. Then, press Square, Triangle,
X, Square, Triangle, Circle, X,
Triangle.
Overhead view: Hold Select and quickly press Triangle(3)
at the main menu. Then, press Triangle(2), X(2),
Square, Circle, Square, X.
