Cyclopes is easily the best game the company ever produced (LNM prototype notwithstanding). There were owners who swore by it, but with only 400 ever made it went otherwise unloved for two decades due to the art package, until Visual PinMAME came along and started to show folks how good a GamePlan it really is. Word of mouth and general price inflation eventually did the rest. The tech was antiquated even for the time though, the soundboard is discrete circuitry rather than CPU-based.