la demo es brutal...pero vaya notitas va recibiendooo..jaja
10 - Presentation
An intriguing, well-written story delivered with at a precise sense of pace. It doesn't get any better than this.
9.5 - Graphics
It may not be as technically impressive as Gears of War, but the art style, animations, and special effects create an unparalleled sense of mood and believability.
10 - Sound
Top-notch voice acting, spectacular ambient effects, and overall some of the best sound design ever built into a game.
9.5 - Gameplay
Superb control, intelligent enemies, and a wildly entertaining mix of weapons and plasmids.
9.0 - Lasting Appeal
A lengthy adventure, 20 hours or so if you don't rush it, yet there's enough variation in the gameplay to bring you back for another round.
http://xbox360.ign.com/articles/813/813214p1.html 
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