TOPIO ("TOSY PIng Pong Playing RobOt") is a bipedal humanoid robot designed to play table tennis against a human being. It has been developed since 2005 by TOSY, a robotics firm in Vietnam. It was publicly demonstrated at the Tokyo International Robot Exhibition (IREX) on November 28, 2007. TOPIO 3.0 (the latest version of TOPIO) stands approximately tall and weighs .