Code                  Effect

dnclip         Toggles clipping mode - walk thru walls
dncoords       Gives your coordinates in upper left-hand corner
dndebug        Toggles debug mode
dnhyper        Steroids
dninventory    Get all inventory items.
dnitems        Get all the powerups and keys.
dnkeys         Gives you all the keys
dnkroz         Toggles God mode
dnmonsters     Toggles the presence of monsters
dnrate         Displays the frame rate in the upper left hand corner.
dnscottyXYY    Level Warp (X=episode number, YY=two-digit level number)
dnshowmap      Shows entire map of level
dnskill#       Changes the skill level of the game.
dnstuff        Get all weapons, ammo, powerups, and keys.
dnunlock       Toggles all locks.
dnview         Toggles view mode (same effect as F7 key)
dnweapons      Gives you all the weapons
                             
               Useless Cheat Codes

   Code                   Effect
 
dncashman      Duke throws out money when you hit the spacebar.
dntodd         Gives you the message "Register Cosmo Today!"
dnallen        Gives you the message "Buy Major Sryker"
dnbeta         Gives you the message "Pirates suck!"