Resident Evil: The Mercenaries 3D entertains with its brand of fast-flowing action, constant stream of unlockables and captivating co-op gameplay. It’s far from a perfect package though, with occasionally rough visuals and a save system that is destined to ensure that second-hand copies are, to some, practically worthless. It’s also worth noting that unless you’re keen on repeatedly playing levels to boost your overall rating, you may tire of the game quite swiftly.