CODES
Cheat Codes
Pause the game and enter the following codes for the desired effect:

Effect				Code
4 more enemies killed		Right, Left, Right, Left, A, A, B, B
Free bag of dollars		Right, Left, A, Right, Left, B, Right, Left
Invulnerable			A, B, C, A, B, C, A, A
Return to the first level	A, A, B, B, C, C, A, B
Skip level			A, A, A, A, B, B, B, B
Unknown				Right, Left, Right, Left, A, A, C, C