Metal Gear Solid: Portable Ops, released in 2006 for the PlayStation Portable (PSP), is an action-adventure stealth game. Developed by Kojima Productions and published by Konami, the game continues the Metal Gear series and features a blend of stealth, tactical espionage, and storyline. Players follow Snake as he recruits a new army to confront the threats posed by the renegade FOX unit. The game is noted for its deep storyline, stealth mechanics, and the introduction of a unique comrade recruitment system that influences gameplay.