To use these codes, press escape and type 7th

OMNIJOEY - God mode
ILOVEJOEY - Gives you 50 lives
MAKEAWISH - Gives you 10 extra lives
GOLDENGUN - Gives you 500 bullets
GIMMEAMMO - Gives you 10 extra bullets
URHOPELESS - Gives you a special item
XGIMMETIME - 10 minute time limit