Robomaze

Robomaze is the first in a series of Robomaze games created by Keith Laverty of MVP Software fame. Apparently this game was only released as a part of a collection of Robomaze games, and wasn't originally released on its own. It's a more simple shooting game when compared to the later Robomaze games, and features CGA graphics. You'll need to carefully maneuver your character into a good shooting position, then blast your foes. The tank-like controls are a bit awkward but not too bad once you get used to them.