DNGODLY : God mode on
DNUNGODLY : God mode off
DNCORNHOLIO : God mode (toggles)
DNKROZ : God mode (toggles)
DNWARP : go to another episode and level
DNSCOTTY : go to other episode and level
DNAMMO : full ammo
DNVIEW'follow' mode.. : watch duke from a few feet behind, with the key
DNWEAPONS : all weapons
DNUNLOCK : unlocks door
DNITEMS : Keys... items... etc.
DNSTUFF : keys, weapons, ammo
DNRATE : shows frame rate (two numbers, top left of screen)
DNSKILL : Re-start level with skill #
DNCLIP : walk through walls (can cause PC crashes)
DNHYPER : steroids
DNENDING : ends the episode
DNCASHMAN : Duke throws out some cash w/
HYPERBLADE - Enter this code while playing...
MDMKSB - Another GOD mode.
GORILLA - Changes all males into gorilla's
SPICYBRAINS - Puts the enemy on his head.