I actually saw one of these once! I was delivering pizza at the time (early 90's) and delivered a couple pizzas to a recruiting place and they had one in the lobby. I was a HUGE fan of BattleZone in the day so it caught my eye and I was Dumbfounded as to what it was! But being I was a young punk and the place was run by dudes wearing uniforms, I didn't bother asking about it. :/