The Boing Ball is the iconic demo for the Amiga platform. I coded an MSX clone for the Bounce Challenge from MRC.
This demo was supposed to be for MSX1, it uses nothing but SCREEN 2 features. However I hadn't optimized the demo by the time the deadline approached, and wasn't going to release it. Then snout from MRC convinced me to put a turboR only flag on the binary, just to get the R800 speed. So the binary available here will work only in turboR, but you can run it on MSX-1 if you compile it from source. I do plan to come back and optimize it back someday.
Download: boing.zip
Source: github