The Hamamatsu Science Museum robots

The Hamamatsu Science Museum in Japan has a few different robots which entertain the visitors. First there's the little blue and green robot which acts as your talking guide in the museum. http://www.youtube.com/watch?v=jfMEQrEG_Vk It can recharge by itself: http://www.youtube.com/watch?v=PnfW2Mp3n5c Then there's the humanoid robot at the entrance. Given its size and Terminator arms, it's best not to try to get away with not paying, a piece of advice :-) http://www.youtube.com/watch?v=hyHJh7bzspk