They've really lived up to the EPIC name with the single-player campaign, now being able to show hundreds of enemies on-screen at once. The whole last act of the game is this huge, amazing, movie-like experience which REALLY looks and plays amazingly. The graphics are more subdued in normal, human, city-like areas, but are at least as gritty and high-contrast as the first Gears when you get into the alien areas. There's also a new soundtrack mixing the familiar tunes from the first game with some new stuff, which really helps to set the mood of the game. All in all, Gears of War 2 is the textbook example of what a great same-generation sequel should be. Upgraded everything and a ton of new content, without changing what made the original amazing.