There aren't too many Shubibinman games in general on eBay these days.
You're best bet would be to bookmark the seller lists/stores of some
of the big japanese sellers and browse ocassionally.
Most list their games quickly without spelling titles correctly or
often not even close to the real names.
You can find a lot of good deals and harder to find items this way.
Also, some of the bigger sellers do requests. If someone has
everything but SM4 for SFC, they'd probably happily sell you a copy
that is either not listed or they can pick up.
--- In
turbografxnetwork@yahoogroups.com, projectblowed_mc
<no_reply@y...> wrote:
>
> I have a rom of it(SFC) but I would like to pick it up on ebay.
> I've been keeping my eyes peeled but having seen anything other
then
> the other 3 games.