Here are some cheats and tips for the game P.O.W..
AEUEIZZA 1 life
IEUEIZZA 6 lives
AEUEIZZE 9 lives
AENSLPPA Infinite lives
STOLOUON Take less damage when hit from behind
AAVGOTPA Infinite bullets
APKGPLAZ + APESYZAZ Play with less energy
GZUUNUSE + GZSLOSSE Keep weapons