Pause the game while playing and hold the PSPs L and R buttons and enter the associated key sequence.




All weapons: UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, X, CIRCLE


Invincibility: UP, UP, DOWN, DOWN, LEFT, LEFT, RIGHT, RIGHT, SQUARE, TRIANGLE


All Upgrades: DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, X, CIRCLE


Porable Ammo Dump: TRIANGLE, TRIANGLE, X, X, SQUARE, CIRCLE, SQUARE, CIRCLE, DOWN, RIGHT




Submitted by fallingdragon




Unlimited Ammo: TRIANGLE, TRIANGLE, X, X, SQUARE, CIRCLE, SQUARE, CIRCLE, RIGHT, DOWN




Submitted by dwarfeater




Big Head: TRIANGLE, CIRCLE, X, SQUARE, TRIANGLE, UP, RIGHT, DOWN, LEFT, UP


Giant Scythe: TRIANGLE, SQUARE, X, CIRCLE, TRIANGLE, UP, LEFT, DOWN, RIGHT, UP


Free Seep: LEFT, LEFT, RIGHT,RIGHT, LEFT, RIGHT, LEFT, RIGHT, X, X


Earn Assist Extender: UP, UP, DOWN, DOWN, TRIANGLE, TRIANGLE, X, X, TRIANGLE, TRIANGLE


Earn a Widget RIGHT, UP, DOWN, UP, TRIANGLE, UP, LEFT, SQUARE, TRIANGLE, RIGHT




Submitted by Shame