HyperTron (c) Acid Software
The game can be controlled both trough keyboard and joystick. Gameplay is high, indeed they just did a cut and paste gameplay.robotron.doc here. Controls are pretty hard, since the camera is way too far, it will be pretty hard to see how far you are from enemy ships. If you did never play robotron, the concept is pretty easy, you're in the middle of a ground with ships running over you and at later levels even firing, you can fire back and move around to avoid them, though Hypertron is even faster than robotron, hardly you will last more than 10 minutes.
The game doesn't want to be a blockbuster hit, it's just hoping to get his place into bargain bin, though graphics is sharp and effective, anyway a screenshoot is way enough to describe everything. Really high frame rate trough this decent 3d engine.
It's an arcade, may be if you happend to have 10 minutes free here and there and don't wanna afford and heavy gameplay, this one will make you happy, of course this game will not suggest you to remove all other games out of your hard disk for it.