Cheat mode
Press C during game play to display the question window, then enter one of the following case-sensitive codes to activate the corresponding cheat function.
| Toggle high speed spaceship movement | pleasespeed |
| 5 extra lives | pleaselives |
| 100% health | pleasehealth |
| Toggle invincibility | pleasegod |
| FireFury (multiple shots) bonus | pleasefire |
| 20 rockets to shoot | pleaserockets |
| Level skip | pleasenextroom |
| Previous level | pleaseprevroom |
| Level | Password |
| Level 1 | LOVE2KILL |
| Level 1, Stage 2 | DIMINISHME |
| Level 2 | VERDAMMTEN |
| Level 2, Stage 2 | 2BBEHEADED |
| Level 3 | KALISHITER |
| Level 3, Stage 2 | DEVILSHERE |