I've founded an interesting link about 2 retrogames shops in Tokyo and Osaka.
http://tokyopia.com/tk/archives/000378.php
Maybe these 2 shops , called 'Super Potato' and 'Retro TV Game Revival' have some Wonderswan rare games to buy?
I would like to know if is possible to buy there and if these shops have online shops website....
check the link very interesting....