Assault Heroes 2
While it doesn't do anything drastically different over the first game, Assault Heroes 2 aims to please. This game's all about shooting. You'll find new vehicles and weapons galore to keep you busy, along with extremely tough boss fights and on-foot segments. The visuals look better than before and the co-op support is great, both off-line and through Xbox Live. In spite of the improvements, the game ends too soon, with only three difficulty levels and so many Achievements to unlock. For $10 though, it's well worth the download.