Moon Shuttle is the official version of the arcade game of the same name from Nichibutsu (which was released in 1981). There are two different screens to go through: on the first, you must fly through an asteroid belt, which has rows of asteroids flying by in different directions and speeds. You can shoot them, as well as accelerate/de-accelerate your ship.
On the 2nd screen, you have to shoot a certain number of alien crafts, which dodge and shoot back at you. As you go through this level again and again, you get different aliens to combat, who get smarter and harder to kill the further you get into the game.
Title: Moon Shuttle
Author: Gerry Humphrey and James Garon
Publisher: Datasoft
Released: March 1983
Requires: Color Computer 1,2,3, 16K RAM, tape or disk, joystick optional.