Berkeley Lower Extremity Exoskeleton (BLEEX)
"The wearer can walk, squat, bend and swing from side to side without noticeable reductions in agility. The human pilot can also step over and under obstructions while carrying equipment and supplies."
Walking robot video
The first part of the video is of a "passive walker" with unpowered legs. The walking motion happens by inertia; it just stumbles along. The second part of the video has a robot that walks under its own power.
Soon this robot will be fitted with a boot with which to stamp on a human face forever. I, for one, welcome our new combat-exoskeleton overlords.