Activate the following cheats by entering the corresponding codes and pressing ENTER. A sound and message will confirm correct code entry. Note: You will be ranked as a cheater after each mission:

CHEAT FUNCTION - CHEAT CODE
Level skip< - deadlineisnear
End game< - diediediemydarling
All power-ups< - glitteringprizes
All missiles< - moremoreweapons
All weapons< - showmetheweapons
Unlimited lives< - igonnaliveforever
God mode< - invulnerability