Cassie 'Halfbot' Best Half (Lower) Of Humanoid Robot
Cassie is a pretty cool and slim robot that walks bipedally. It's basically the bottom half of a humanoid robot.
(Cassie the walking halfbot)
The biped walking robot at the present moment is hard enough to walk even on a flat surface. Moreover, speed has not been pursued. What will happen if you become a staircase? It can be said that there is no better way to make a robot poisoned by spending a lot of money.
Still, robotics has attractiveness and promising potential. There is not one correct answer for the machine to move freely. Boston Dynamics' horribly agile quadruped carrying robot has excellent stability. A cockroach type robot that goes into narrow gaps may crawl in the rubble to find the building that collapsed. Now that robotization advances, you may find a perfect place for a biped walking robot. For example, it is "human-like work" such as twisting a valve by going up a ladder at a nuclear power facility which has become a decommissioning furnace.
Cassie still has no arms. The destination must be directed by humans. However, from now on the biped walking robot will go to various places. Even though it is impossible to go to the top of Mount Everest, there are many places you can go.
Since human imagination so often runs to the dystopic, maybe it's just as well that we only develop the lower half of humanoid robots.