I'm the nerd that requested this be added to Infinite Mac, as there's a lot of great Japanese software. :) https://news.ycombinator.com/item?id=43607153

Wild. There was a Japanese port of Glider 4.0 to Japanese. (Sadly I have only the box and manual, no floppy. I am not sure I ever had it — be nice to find that rare binary out there.)

I have a demo of 4.06 that's probably Japanese. I'll check soon https://www.gingerbeardman.com/mmm/#Glider%204

If you ever find it, folks at https://68kmla.org should be able to help