Droll Attack is a low-res (64x32x9) arcade style game similiar to Galaxian. You have to shoot dive-bombing ships coming at your from the top of the screen. The blue line at the top is actually squares; they change into Drolls to divebomb you. This means that near the end of each wave, you can predict where the last few are going to come from.
Title: Droll Attack
Author: ???
Publisher: T&D Software?, Issue #30
Released: 198?
Requires: Color Computer 1,2,3, 16K RAM tape or disk.