I find Festo's work interesting, but the spider bot in particular looks really clunky overall in comparison to even some of the hobby level stuff that's out there. It would make sense to have a rolling robot if it was really fast (and could steer while rolling).<p>Here's an example of a hexapod from 6 years ago, I believe built from a kit but running customized motion control code:<p><a href="https://www.youtube.com/watch?v=rAeQn5QnyXo" rel="nofollow">https://www.youtube.com/watch?v=rAeQn5QnyXo</a><p>Skip to 0:45 to see it running. Still amazing to me and I haven't seen too many other legged robots that look this smooth.