Metal Guardian is an enemy appearing in Kirby & the Amazing Mirror that gives the Laser ability. It will remain secluded in armor until Kirby approaches it. When encountered, it will float around and shoot one or three lasers at Kirby. This enemy needs to be super-inhaled.
Metal Guardian looks like a giant, metal ball, but it reveals an eye when it opens up. Its design may be vaguely based on Laser Ball.