Wow, this is some truly impressive "anatomy" and "physics". I'd never seen anything like it.
Btw, videos don't work in the Linux version (just shows a black screen), I believe it's due to some codec licensing issues. But Windows version works well on Linux, e.g. by using Faugus launcher.
Lastly, some videos don't seem to have a seamless start and end points, so the animation looks like it's skipping.