Doesn't seem too many people have spotted this due to the lack of bids. It's a Hotel Famicom system for 'Love Hotels' apparently. You pop in some carts and plug it into a TV, pay 100 yen coins (or wire up a switch to override it).. and you can play the games. Good novelty item. I'd buy it, but shipping-wise it's too rich for my blood, as these things are insanely heavy.
As for the coin mechanism. I'd get a 100 yen coin somewhere and pull it out of the drawer when I need to. ;D or just rig it so I can push a button to trigger it. [very easy].
http://cgi.ebay.com/ws/eBayISAPI.dll...102362642&rd=1
Enjoy ;D