This is not a robot. This is a man in a General Grievous costume, a notoriously difficult character for cosplay, designed by Wicked Armor. It's easily a foot taller than the person inside. You almost expect him to pull out multiple lightsabers and start spinning them! Can you figure out how it works?
The wearer is completely concealed within the cape lining. He's wearing a headband that controls the Grievous head. There are more details at the sales page. Yes, you can buy this! But it's priced for serious cosplayers or professionals, and you might have to wait a while because it's not exactly mass-produced. But it could well be worth waiting for, since the design is being upgraded for ever more accuracy. -via Everlasting Blort