Released in 2007 for the PSP, this is a standalone expansion to Metal Gear Solid: Portable Ops, shifting focus heavily to multiplayer action for up to six players via WiFi. While it lacks a story campaign, it features an "Infinity Mission" mode for solo tactical challenges and includes new characters like Old Snake. The core loop of capturing and recruiting comrades continues, supplemented by updated tutorials for those new to the mechanics.
The single-player experience is contained entirely within the "Infinity Mission" mode. This mode is explicitly designed as a challenge gauntlet, offering a series of objectives to test tactical proficiency without any accompanying story or plot elements.
The primary draw of this expansion is its robust multiplayer component, supporting up to six players connecting via WiFi. This allows for cooperative and competitive play across specialized mission sets. Furthermore, the roster of available operatives is expanded with notable additions, including characters such as Old Snake (as featured in a later title), Roy Campbell, and Raiden from an earlier installment.
Although it is playable independently and lacks a new story campaign, this version exists within the established universe and operational framework of the original Portable Ops. It utilizes the same core mechanics for unit management and mission deployment, providing additional content that complements the established world setting.
To facilitate entry for players unfamiliar with the base game's systems, this version includes updated tutorials. In terms of scope, this release is more concentrated than the original, prioritizing mission variety and online/local multiplayer replayability over a lengthy cinematic campaign.
Moderate violence