Meet the Ghost Minitaur: a direct-drive quadruped fully capable of navigating grass, rock, sand, snow, and vertical terrain. It can climb inclines up to 35 degrees and crouch to move under space as low as 27cm. The robot can also leap onto edges up to 40cm and across gaps (up to 80cm).
As this video shows, the robot can stay balanced on two legs. It can easily overcome natural obstacles.