The section of the video where the robotic arm "plays ball" really impressed me due to the kind of playfulness which it exhibited. Beyond being impressed by the fluid actuator system I was just starting to be amazed at the programming involved with making a robotic arm that can show such accuracy to "catch" the ball and roll it back but also do it in such a playful manner..... then the camera zooms out and shows that the arm was being controlled by a human. Damn.

* I'm at working and watched the video with out sound, so maybe I missed as it was explaining what was going on.