| Effect | Code |
| Toggle God mode | wimp |
| Unlimited lives | getalife |
| Level skip | goto |
| Toggle flight mode | fly |
| Create a nearby Centipede | pede |
| Automatic movement and firing until player assumes control | robot |
| Normal game speed | normal |
| Slightly slower game speed | slow |
| Slower game speed | sloww |
| Very slow game speed | slowww |
| Extremely slow game speed | slowwww |
| Return to Windows | dload |
| Display diagnostic codes on screen | diags |
| Screen modes | showz |
| Toggle collision boxes around objects | boxes |
| Toggle time codes | times |
| Clear caches | clearc |
| Generate report files | report |
| Purge message | purge |
| Unknown | dumpcoords |
| Unknown | happytrails |
| Unknown | spots |