Arcade America

Press escape, then type 7TH followed by these codes and press enter:

ANGEL One extra live
MAKEAWISH Ten extra lives
ILOVEJOEY 50 extra lives
GIMMEAMMO Ten extra bullets
BLASTEM 100 extra bullets
GOLDENGUN 500 extra bullets
OMNIJOEY Invulnerability
URHOPELESS Get special item
FATBOYCANTJUMP Enable fly mode
HALEJOEY Restore full health
GIMMETIME set time to 10 minutes
MAKEAWISH 10 extra lives