Metal Gear Solid Portable Ops Plus is set during World War II. The story follows Big Boss, a member of an elite American special forces unit known as FOXHOUND, who leads a rebellion against the United States government after he discovers that his own country has been using him as a pawn in their Cold War with the Soviet Union.
The gameplay is fast-paced and action-packed. Players control Big Boss and other characters as they navigate through various environments, including jungles, deserts, and cities. The game features a unique "command" system, where players can issue orders to their allies, instructing them to perform specific actions such as attacking or using special abilities.
Metal Gear Solid Portable Ops Plus was released on 13 November 2007 for the PlayStation Portable (PSP) console.