Brick Labs

BostonDynamics has an all-terrain robot.  It’s not built from LEGO.  But I think you could model some of it fairly easy from LEGO pieces.

This robot is called RHex.  It’s a six-legged walking robot.  It navigates through all sorts of terrain, including mud, dirt, sand, rocks, grass, weeds… and it even swims.

Currently, RHex is remotely controlled.  It has full GPS. front and rear cameras.

Boston Dynamics has some other robots too, including the BigDog (watch the video for this one… the balance of this robot is amazing), RiSE (climbs vertical surfaces) and LittleDog.