Metal Gear 2: Solid Snake (メタルギア2 ソリッドスネーク,Metaru Gia Tsū Soriddo Sunēku?, commonly abbreviated as MG2) is an overhead action-adventurestealth video game (officially taglined as a "Tactical Espionage Game") that was originally released by Konami in 1990 for the MSX2 computer standard exclusively in Japan. Metal Gear 2 was designed and written by Hideo Kojima, who also designed the MSX2 version of the original Metal Gear. The game is unrelated to Snake's Revenge, a separately developed Metal Gear sequel for the Nintendo Entertainment System that was released during the same year in North America. Metal Gear 2: Solid Snake did not have an official English version until its inclusion as a bonus game (along with the MSX2 version of the original Metal Gear) in Metal Gear Solid 3: Subsistence for PlayStation 2 in 2006, almost 16 years after its original Japanese release.