A humanoid robot "Actroid DER-2" (R), produced by Japanese robotic venture Kokoro, smiles to robots fans during a small-scale robot event in Tokyo, Nov. 4, 2006.(Xinhua Photo) Photo Gallery >>>

Controlled by their masters, two robots fight with each other during a small-scale robot event which attracts robot fans in Tokyo, Nov. 4, 2006.(Xinhua Photo) Photo Gallery >>>