Cheats:
| DNCORNHOLIO | God mode |
| DNKROZ | Invincibility |
| DNWEAPONS | All weapons |
| DNSTUFF | All items |
| DNDEBUG | Displays debug info |
| DNRATE | Displays frame rate |
| DNCOORDS | Displays your coordinates |
| DNSKILL# | Sets skill |
| DNKEYS | All keys |
| DNITEMS | All items |
| DNCLIP | Clip mode Toggle |
| DNHYPER | Steroids! |
| DNMONSTERS | No monster mode |
| DNCASHMAN | Throws out cash when you hit enter |
| DNINVENTORY | All powerups |
| DNVIEW | External view of Duke |
| DNSHOWMAP | Shows full map |
| DNSCOTTYxy | Level warp x=episode y=level |