| Cheat Codes | |
| How To Use Them | Just type the code at anytime while playing the game |
| Cheat Code | What It Does |
| DNSCOTTY### | Warp to any level-replace the first # with numbers 1-3 to go to that episode and the other two #'s with numbers |
| DNCORNHOLIO | God mode-never die and gives duke unlimited jetpack |
| DNKROZ | Same as DNCORNHOLIO |
| DNSTUFF | Gives all weapons, maximum ammo, all keys, and all inventory items |
| DNITEMS | Gives all items and keys |
| DNWEAPONS | Gives all weapons |
| DNKEYS | Gives all keys |
| DNINVENTORY | Gives all items |
| DNSHOWMAP | Display entire map |
| DNCOORDS | Show current map coordinates |
| DNRATE | Display frame rate in the upper-left corner |
| DNHYPER | Gives boost of unlimited steroids |
| DNCASHMAN | Throw money every where everytime you press space bar |
| DNVIEW | Changes to "behind-duke" view |
| DNCLIP | Walk through walls |
| DNMONSTERS | All monsters disappear from level |
| DNSKILL## | Changes the skill level and starts new game |