Remember that 'spider-walk' scene from 'The Exorcist'? If not, here's a refresher...

Well, the next entrant for the DARPA Robotics Challenge, DRC-HUBO, neatly transforms from bipedal to quadrupedal locomotion, by arching over backwards. One can only guess why... ;)

It even climbs ladders with its back facing the ladder.

Here's HUBO in humanoid form, looking a little less creepy.

[via gizmag, physorg, and plastic pals]