Metal Gear 20th Anniversary: Metal Gear Music Collection is a compilation album released by the video game series Metal Gear on July 18, 2007. The album contains songs from various games in the series, as well as a new song titled "Metal Gear 20 Years History — Past, Present, Future —", a medley spanning the whole series. The album was produced by Norihiko Hibino, who also composed three of the album's songs and co-arranged two tracks.