In the sequel to Gears of War, there is now more things that you can do to anihilate your crawling Locust friends.
In the sequel, it takes the execution moves further. In Gears of War, you curb stomp your enemies that are on the ground. In Gears of war 2, your enemies can crawl away from you. The good news is that you can finish them off in alot of different ways. For starters, you can still curb stomp. You can also get on top of them and beat them up, or you can wack them with your gun for a faster executiion. Depending on what weapon your character has, you can perform all sorts of different cool finishing moves.
The blood graphics have changed in Gears of War 2. You will see that in the sequel, the blood is more liquidy than the first.
I recomend this game to anyone that owns a 360.