The Metal Gear universe (メタルギア, Metal Gear) refers to the Smash Bros. series' collection of characters, stages, and properties that hail from the popular Metal Gear stealth-based video game franchise developed by third-party developer Konami. The long-running series is famous in the Smash Bros. community for being the first third-party game franchise to contribute characters and properties to the otherwise Nintendo-exclusive Smash Bros. series, mainly the series' main star, Solid Snake. The logo is the logo for FOX, the unit that Naked Snake hailed from in Metal Gear Solid 3: Snake Eater (also the former logo of Kojima Productions, the developer of the franchise).