Invincibility:
Enter AIQY as a password.

Level skip:
Press 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1 during game play.

Level	Password
1	AJGJ
2	LAEA
3	ASNF
4	NEVA
5	AALG
6	BLTO
7	VIAN
8	UIAN