Cheat menu
Enter "CHEATONX" as a password, then press [Select] during game play to display the cheat menu. Press [Up] or [Down] to select a level or [Left] or [Right] to select a zone. Press [A] for invincibility (001 will appear to confirm correct entry)
Classic Asteroids mini-game
Enter "QRTREATR" as a password.
Excalibur ship
Enter "PROJECTX" as a password.
Cheat menu and Excalibur
To get the Excalibur ship and still have the cheat menu available, first enable the "Cheat menu" code. Quickly complete the game, then enter the "Excalibur ship" code. You will be able to use the Excalibur ship and still display the cheat menu during game play.
| Level | Password |
| 2 | SPACEVAC |
| 3 | STARSBRN |
| 4 | WORMSIGN |
| 5 | INCOMING |