Colorout is a low-res version of Bustout, and is notable in that it only needed a 4K machine to run, even though it was not in cartridge form. It can be played with either keyboard or joystick control. It is also one of Spectral Associates (a very prolific game company for the Coco 1/2 in it's heyday) first games.
Title: Colorout
Author: ??? (Colorful Software)
Publisher: Spectral Associates
Released: May 1981
Requires: Color Computer 1,2,3, 4K RAM cassette or 16K RAM disk, joystick optional.