Metal Gear (メタルギア, Metaru Gia) (commonly abbreviated to MG) is a stealth game designed by Hideo Kojima.Metal Gear was developed and first published by Konami in 1987 for the MSX2 home computer. The premise revolves around a special forces operative codenamed Solid Snake who goes into a solo infiltration mission into the fortified state of Outer Heaven to destroy Metal Gear, a bipedal walking tank capable of launching nuclear missiles from anywhere in the world. The game is considered to be the progenitor of the stealth genre, in which avoiding direct encounter with the enemy is emphasized over attacking openly.