AEUESLZA - Start with 1 life

IEUESLZA - Start with 6 lives

AEUESLZE - Start with 9 lives

LASEXLPA - Start at phase 3

IASEXLPA - Start at phase 5

AASEXLPE - Start at phase 8

SZEEOSVK - Never lose your special weapon

ZEOOEYPA - Gain main weapon on rescuing 9 humans

GXEAKKSE + GXSUZXSE - Never lose humans on dying