This was a coin-op conversion of the old Atari (I think) arcade machine, which was a bit like a 3d update of their old game Beserk (showing my age now!). You view the game from behind your character and basically just shoot robots, like a 3d version of gauntlet really. I remember two players could play at the same time with split screens, so you could wander off separately from each other, which was a good idea. Quite good arcade-style blasting fun!