PGNx writes: "Epic Games' sequel ups the ante across the board. Gears of War 2 doesn't revolutionize the Gears series but it does offer more, as well as bigger and better things.
The single-player campaign is epic with tons more characters onscreen, the addition of drop-in drop-out co-op makes a big difference, and the pumped up multiplayer mode increases the game's replay value substantially. All in all, it makes for a very compelling package.
Gears of War 2 begins shortly after the first game ended. As you may remember, the Locust Queen promised that the Locust would keep fighting after Gears' credits rolled. She wasn't lying – the Locust are incredibly powerful in Gears 2, capable of sinking entire cities. They've set their sights on Jacinto, humanity's last remaining city, and it's up to Marcus Felix and Dominic "Dom" Santiago to lead the charge against them. Compared to Gears, the sequel places more emphasis on story, uncovering some of the relationships and motivations that make the soldiers fight."