Condemned 2 is a good example of what happens when a developer takes a good game and makes it better. Even though its ending isn't nearly as strong as the stuff that precedes it, the overall package is a worthy followup to a solid Xbox 360 launch title. Plus, it totally has the "hit a crazed bum in the face with a bowling pin" genre locked tight.
Pros: Fantastic melee combat; improved forensic elements; story makes sense.
Cons: Ending peters out; it occasionally tries too hard to top the previous game; most of the multiplayer modes aren't as good as they sound.