Metal Gear Solid Portable Ops + review at Pocketgamer.co.uk.

"Take Metal Gear Solid: Portable Ops – one of our favorite and highest rated PSP titles – subtract the story, minus the intrigue, and sprinkle the slightest essence of new multiplayer content and you're left with one of the most underwhelming titles of the year. Harsh as it may seem, Metal Gear Solid: Portable Ops Plus attempts to expand the award-winning gameplay of the original but ends up a worthless cash-in instead."

Full Source: Pocketgamer.co.uk