Snake's Revenge (also known as Snake's Revenge: Metal Gear 2) is a stealth action-adventure video game produced by Konami for the Nintendo Entertainment System in 1990. It is a stand-alone sequel to Metal Gear that was released in North America (under the Ultra Games brand) and the PAL region following the international commercial success of the NES version. The game was produced without the involvement of series creator Hideo Kojima, who went on to develop a separate sequel for the MSX2 titled Metal Gear 2: Solid Snake, which was released later during the same year in Japan.