A stealth action video game directed by Hideo Kojima, developed by Konami Computer Entertainment Japan and published by Konami for the PlayStation 2 in 2001. It is the sixth canonical game in the Metal Gear series and the sequel to Metal Gear Solid. The story revolves around a massive offshore clean-up facility that has been seized by terrorists calling themselves the "Sons of Liberty." They demand a massive ransom in exchange for the life of the President of the United States, and threaten to destroy the facility and create a cataclysmic environmental disaster if their demands are not met. The motives and identities of many of the antagonists and allies change rapidly, as the heroes discover a world-shaking conspiracy constructed by a powerful organization known as the Patriots.