University of Tokyo developed a bipedal humanoid called Sasuke. A remote brained robot, Sasuke has CCD camera as its eyes, can navigate places and carry loads while walking.
JSK Laboratory created an extremely small robot in 1994 called Chibita. The robot walks on four legs, and can continue to walk even if it topples over or accidentally turns over.
Igoid is a humanoid robot designed by JSK Laboratories to research sensor-based reactive behaviors. It has a tactile sensor suit that enables it to respond to touch and sound.