Metal Gear

"Holy cow! Metal Gears! Boy, I saw that once when I was playing some Metal Gear games back then. Now I'm screwed up when these Metal Gear things came into my sights!"

--Su Ji-Hoon, Solid Snake Returns

A Metal Gear is the designation to various models of bipedal tanks. Metal Gear were behemoth machines capable of decimating lesser machines. Metal Gear had the distinction of being nuclear capable, firing warheads from their rail gun, eliminating the need for a missile, or launchpad allowing them to attack targets from anywhere in the world, on any kind of terrain. This peaked with Metal Gear REX which was sophisticated enough to launch a nuke and hit a target from anywhere in the world. REX also had the distinction of being completely untraceable.