Ooo yeah, I've seen this before. Sadly, my garage is far too small.

And it doesn't so much walk as "shuffle like a decrepit old man" -- I would want mine to pick up it's feet; but that requires either some monster wide feet (lame); a honking gyro in the body (meh); or lateral hip action (complex!).

And it's got this jerkiness of binary hydraulics; needs some inline compliance, or at least rate control and some fly-by-wire computers inline to smooth it out (which would be a given, for dynamic balance).

Hmmmm....

Maybe next year.