Game Genie Codes

Unlimited lives: OZNEAAVS
Unlimited bombs: GXUEALVI
Unlimited credits: GZNEIOVS
Start with 1 life for player one: GZXATEOZ
Start with 1 life for player two: AAUALAGA
Start with 9 lives for player one: TAXEZAXZ PZXELENY
Start with 9 lives for player two: AAUALAGE
Auto-fire: AAEELOGI
Start with maximum firepower: EZXAPPKZ TAXAZOIL
Double bombs: TAVPSTLA
Double credits: TAUAYALA
1 life after continue for both players: AANEZPGA
9 lives after continue for both players: AANEZPGE