Toyota's latest robot T-HR3 is one of the hundreds of robots on show at the 22nd International Robot Exhibition, which opened in Tokyo on November 29. Not only is it pretty good at Tai Chi, but it can also mirror complex human movements in real time. More than 2,000 companies and organizations are taking part in the exhibition. Held every two years, it's the world's largest robot exhibition showcasing a variety of state of art robots.