A tachikoma is not the general purpose vehicle. It is an example of what a general purpose robot body could look like. It's job, in an anime, is a super intelli

A tachikoma is not the general purpose vehicle. It is an example of what a general purpose robot body could look like. It's job, in an anime, is a super intelligent armored tank. Humans evolved to be bipedal to see over the bushes and tall grass in the savannah. Maybe the optimal form for a robot is an elephant with prehensile trunk, or giraffe, or a frog.