Only 1 ship and 1 life
PAKSZLGA
8 ships and 8 lives
AAKSZLGE
Infinite lives
SZXONIVG
Minimum damage taken from walls
AEXXAVNY
Start on level 3
ZASSTLAA
Start on level 6
IASSTLAA
Start on level 9
AASSTLAE
Start on level 11
ZASSTLAE
Start with more money
AASSZLPE
Weapons use up no energy
SVEKOVON
Reversed gravity for planet 1
UNSPLSLE
Reversed gravity for planet 2
VTSOZVTO
Reversed gravity for planet 3
KVOPATGP
Reversed gravity for planet 4
XNVOTSZE
Reversed gravity for planet 5
ETXPGTAZ
Reversed gravity for planet 6
OTUOYVPX
Reversed gravity for planet 7
UTEOPTLZ
Normal gravity for planet 8
AOXOLVEV
No damage taken from walls
AEXZGVSY
AEXXAVNY
Items for free
AEUIOXYA
GXKSOZSA