Secret king sword weapon:
Pause the game, then press Up, Down, Up, Down, Left, Right, Left, Right, Circle, Square, Circle, Square.
Secret chainsaw weapon:
Pause the game, then press Up, Down, Up, Down, Left, Right, Left, Right, Circle, Square, Circle, Square.
Secret baby rattle weapon:
Beat the game on easy difficulty. Pause the game, then press Left, Left, Right, Right, Circle, Square, Square, Circle, Up, Down.
Secret telephone weapon:
Beat the game on normal difficulty. Pause the game, then press Right, Left, Right, Left, Down, Down, Up, Up, Circle, Square, Circle, Circle, Square, Square.
Secret swordfish weapon:
Beat the game on hard difficulty. Pause the game, then press Up, Up, Down, Down, Left, Right, Left, Right, Circle, Square, Circle, Square.
