This was basically Battlezone but with polygons. I have fond memories of playing this a lot, although it was fairly dull. In the first couple of levels you drove around the ground, and later on you could fly, but although the graphics were fast, the gameplay consisted entirely of shooting a certain number of baddies before going on to the next level (it was a bit like Starglider in that respect). There were these irritating roller crusher things that could kill you in a jiffy. The music was a very short sample that looped around and was, I think, done by Rob Hubbard.