Ah, ok. I assumed they had some sort of height calculation to them (like the maracas in Samba de Amigo) since I thought there was a high/low aspect to the moves and was trying to figure out how the sensors did that, but then again it's been 10 years since I played PPP. I saw a few when I was in Japan a couple years ago but resisted the urge, for various reasons. Mostly related to nearby gals and a snarky friend. On/off switches are simple enough, lol. Well, in the grand scheme.