Unlock Everything

While at the "Cheats" screen in the Options menu, press Triangle, Triangle, X, X, Square, Circle, Square, Circle.

Unlock All Cheats

While at the "Cheats" screen in the Options menu, press Square, Circle, Triangle, Circle, Square, X, Triangle, X.

Unlock Unlimited Ammo

While at the "Cheats" screen in the Options menu, press Square, Triangle, X, Circle, Square, Circle, X, Triangle.

Unlock Level Select

While at the "Cheats" screen in the Options menu, press Circle, Square, X, Triangle, Square, Circle, X, X.

Unlock the Walking Dead

While at the "Cheats" screen in the Options menu, press X (8x).

Unlock Unlimited Grenades

While at the "Cheats" screen in the Options menu, press Circle, X, Circle, Square, X, Circle, X, Circle.

Unlock Super Health

While at the "Cheats" screen in the Options menu, press X, X, Square, Triangle, Square, Triangle, Circle.

Unlock the "Reign of Fire Mode"

While at the "Cheats" screen in the Options menu, press Triangle (8x).

Unlock Different Deaths

While at the "Cheats" screen in the Options menu, press Square (8x).

Unlock Gibby Explosions

While at the "Cheats" screen in the Options menu, press Triangle, Circle, X, Square, Triangle, Circle, X, Square.

Unlock Rapid Rails

While at the "Cheats" screen in the Options menu, press Circle, Square, X, X, Triangle, Triangle.

Unlock Expert Mode

While at the "Cheats" screen in the Options menu, press Square, X, Circle, Triangle, Circle, X, Square, Triangle.