Metal Slug is a series primarily of run and gun video games created by SNK. Spin-off games include a third-person shooter and a tower defense game. Originally created for Neo-Geo arcade machines and game consoles, the original games have also been ported to other consoles,
with several later games created for various other platforms. The games
focus on the Peregrine Falcon Squad, a small group of soldiers who
fight against a rebel army, aliens and various other forces intent on
world domination.
Metal Slug 1 through to 5 were created for Neo-Geo, though some of these titles were later ported to platforms including the Sega Saturn, PlayStation, Virtual Console, PlayStation Network, PlayStation 2, Xbox, Xbox Live Arcade, iOS, Android, Windows Phone and also for PC via Steam. Subsequent main games and spin-offs were created for platforms including Nintendo DS, Neo Geo Pocket Color and Game Boy Advance. A collection of the first seven games in the main series, as well as the Metal Slug X remake, Metal Slug Anthology, is available for the Wii, PlayStation Portable, and PlayStation 2, with a similar collection, Metal Slug Collection PC, being available for PC. A spin-off tower defense game, Metal Slug Defense, was created for iOS and Android. Another spin-off game, Metal Slug Touch, was created just for iOS in 2009, though was removed from the App Store in 2012.