It's cool that it works like that, but yeah it's also really creepy! I think I've been playing too much Halo lately cuz the first thing I thought of was hitting it with a rocket launcher.
I thought the neatest part was when the guy tried to push it over and how it adjusted and reacted to that.
The only thing creepy to me about it is how much the legs resemble human legs. Then it makes me think how much time these guys had to have spent on this thing trying different designs, etc and in the end they came back to the human leg as their most efficient/effective option.