CODE	KEY IN . . .	EFFECT . . . 
1	PAOPUGLA	Player 1 start with 1 life 
2	TAOPUGLA	Player 1 start with 6 lives
3	PAOPUGLE	Player 1 start with 9 lives
4	OZNEATVK	Infinite lives, players 1 & 2
5	IAOONGPA	Player 1 start at level 5
6	ZAOONGPE	Player 1 start at level 10
7	YAOONGPE	Player 1 start at level 15
8	GPOONGPA	Player 1 start at level 20
9	PPOONGPE	Player 1 start at level 25
10	TPOONGPE	Player 1 start at level 30
11	SXNAIAAX	No bat enhancement capsules
12	SXVATAAX	No lasers