I built this robot for the 2015 Atlanta Maker Faire. It is built on top of my adult sized Krazy Kar. My wife and I collaborate on this costume - she plays the part of the "mad scientist" and carries a box that says "Robot Control System" that has a bunch of dials attached to it. I'm inside the robot and speak to people through a voice amplifier that also changes my voice so it sounds more robotic. Kids and adults love this thing at Halloween.