The STILTwalker is a yellow and black Lego MOC. This mech is outfitted with a duel cockpit design. It is held together with Technic Axles, which also allows the body to adjust height by sliding up and down. The walker is controlled with 3 main engines, and 2 smaller “movability” engines. It is outfitted with multiple guns, and even comes equipped with an anime style sword.
This Lego mech was inspired by the gas masks, and would operated in toxic environments. The STILTwalker is the creation of tanks, and you can find more information over on Flickr: https://www.flickr.com/photos/54660083@N07/sets/72157669076924714