| 1-5 | Gain weapon | |
|---|---|---|
| 6/7 | Add/decrement speed | |
| 8 | Increment lives | |
| 9 | Gives man shield | |
| T | Show game info | |
| X | Followed by number key | Sets stage |
| K | Kills all aliens except mother ship | |
| D | Suicide | |
| C | Kill enemy at end of stage | |
| R | Restart stage | |
| L | Add 1,000 to score | |
| I | Finish game | |
| Q | Quit |