| Cheat | What it does |
| dncornholio or dnkroz | God mode: invulnerability, unlimited jetpack! |
| dnstuff | all weapons, powerups, and keys |
| dnitems | powerups and keys, but no weapons. |
| dnscotty### | Level Warp: #episode ##level |
| dnview | Lets you see duke from behind |
| dncashman | Duke throws money if you hit the spacebar |
| dncosmo | Message: "Register Cosmo Today!" |
| dnallen | Message: "Buy Major Sryker" --- ??? |
| dnbeta | Message: "Pirates suck!" |
| dnhyper | Same effect as the Steroids...speeds up Duke |
| dnrate | The frame rate will appear in the upper left corner. |
| dnclip | Turns clipping ON/OFF, lets you walk through walls (not Version 1.0) |
| dnmonsters | Removes all monsters (not Version 1.0) |
| dnweapons * | all weapons |
| dnunlock * | unlocks the door in front of you |
| dnskill # * | Reload level with Skill # |
| dnending * | ends current episode |