up, down, left, right, A, B All Weapons
up, down, left, right, up, down, left, right God Mode
X,B,A,B Invisibility
right, down, left, A Kungfu Fists
up, up, down, down, A, B, A, B Minigun
up, A, up, B, Y, up, X Nofall (prevents player from being knocked down)
A, B, Y, X, A, B, Y, X Nuke (kills all spawned enemies)
X, up, right, up, right Unlock All Levels