I picked this one as a Buy it now off eBay a few months ago, but I'm wondering if maybe it is a prototype, or at best, an alternative version. The game plays the same as all the other versions on MAME, but the title screen is slightly different (Silver O, instead of a Fan and red O), and lacks the Atop and Kaneko logos. The background color on the test menu is white. The board: It has a Kaneko stamp on one of the cpu's so I think it's a legit board... Out of curiouslty, I bought the Japanese retail board off eBay recently, and it has a smaller stack with mask roms. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230513757777
