TumbleBE was a game from the BEArchive a long long time ago. Although I forget who wrote it, I should still have a copy of the original download from the site (and not a recycled version from some 3rd party site). When I get the time this weekend, I'll dig around my old archives and see if I can find it and upload it somewhere.
I seem to have had some issues getting that to run on Windows 7+, but I think I was able to run it in a Virtual Box that I use for old-game compatibility. If//when I get the time to look at at, I'll take note on what I need to do to get it to work again, and post the information here for those that might still need help.