Press \ and then type in the following code during gameplay:
| Demo Version |
| BLOODLUST | Weapon power up |
| FUSHIPI | God mode |
| GUNS | All weapons and ammo |
| TUNNEL | Walk through walls |
| XMAS | Gain all items |
| Full Version |
| AIMOVE | Enemy AI toggle |
| AMOBJECT | Shows objects on automap |
| ARMS | Gain all weapons and ammo |
| BLOAD | Level warp |
| BLUB | Slow-motion toggle |
| DIG | Walk through walls |
| DUNHOUR | Kill all enemies |
| FMK | Gain full health |
| FRAME | Display framerate |
| GIFT | Gain all items |
| GOBBET | Gib Yourself(?) |
| GPS | Display location |
| GRAV | Lower gravity level |
| GUNS | Take away ammo |
| OREILLY | Radar tracker |
| OUCH | Hurt yourself |
| OVERDRIVE | Microchip powerup |
| POED | Zero Gravity |
| RAGAMUFFIN | Invincibility toggle |
| SPUTNIK | Full automap |
| VICI | End level |
