Death Jr. 2: Root of Evil (Sony PSP)
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All Weapon Upgrades
Hold L and press Up, Up, Down, Down, Left, Right, Left, Right, X, Circle.
Invincibility
Hold L and press Up, Up, Down, Down, Left, Left, Right, Right, Square, Triangle.
Refill Ammunition
Hold L and press Triangle, Triangle, X, X, Square, Circle, Square Circle, Down, Right.
Unlimited Ammunition
Hold L and press Triangle, Triangle, X, X, Square, Circle, Square Circle, Right, Down.