I recently created two mirrors of some Macintosh game places.
The first is Macintosh Game Joho. Doubtful of how long it would stay up, I made a mirror.
Here is the original site: http://www.alles.or.jp/~mgj/english/past.html
Anyway, every month from early 1998 to mid-2002, lots of updates of Macintosh games were added. Full software, shareware, etc., even foreign-language releases (you will find mentions of Japan-only Yoot Tower add-ons, for example). Although most of the links are dead, it's pretty fascinating and may shine some light on the lost games of the Macintosh.
The mirror: http://aaron.reference-man.com/macintoshgamejoho/past.html
Also is the Blobbo FAQ I found, which is useful: it gives tips, a patch to be able to complete the demo (it's impossible without it!), and what happened to it. It was sold to a Japanese company that was to produce ports for the SNES and the PC, but I don't know the company, and I don't think Blobbo even came out for the SFC (the Japanese SNES).