NHK Robot Contest of College of Technology is called "Robocon" in Japanese. The Robocon game is greatly different in the theme every year. In last few years contest, however, the robot must be one with Two-legged mechanism. The tires, the crawler and many-legged Robot are not permitted by the rule. Then, the author considered on two-legged technology as student of College of Technology. Two-legged mechanism robot which the author manufactured in 2009 Robocon is introduced.