Climbing stairs could be one from the toughest physical tasks for a bipedal assortment of motors plus circuits, as Honda's ASIMO can relate, less than one man's managed to succeed in simply which allowing for about that head-banging Lego Mindstorms NXT robot. Once spending years tinkering with the plastic blocks, 222Doc's X-2 Chicken Walking Biped can autonomously walk up and down flights of little steps with relative ease, operate headstands and additionally scale five-inch cinder block cliffs if precariously pushed. The robot specifies purely seven Lego servo motors plus a splash sensor and gyroscope in both foot, but additionally uses a couple of third-party multiplexers (also noticed in that remodeling Wall-E) for fine management of the additional motors. Keep a look it perform after the break, but prevent the second video at 3:20 if pain causes you to queasy -- the bot takes a lovely gruesome spill.