Confirmed by Skidog
Chocko Maker
Shikigami no Shiro 2 (needs both coin counters spoofed)
Reported by _xizor (I have yet to confirm)
Super Shanghai 2005
Tetris Kiwamemichi
Details on how to spoof coin counter in this thread
http://www.sega-naomi.com/forum/viewtopic.php?t=1473
Enjoy
Bob Presutti