Asteroids

Note: This is the Game Boy Color game, not to be confused with Asteroids for the classic Game Boy.

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.
Information in this section was contributed by COMICZONE95.