The F-6 Big Foot is a military combat mecha created by the Guardian Units of Nations. It is employed in heavy combat situations and walks on two bulky legs, though it is also flight capable. It is armed with a gatling gun and two missile pods, one on either side that can each launch four-missile volleys. Its weak point is its cockpit. Sonic the Hedgehog was forced to fight one of these mechs after he was set up by Shadow in Sonic Adventure 2. In Shadow the Hedgehog, Shadow had to fight several of these walkers, though they often only had either the missile launchers or the minigun.