I just finished Halo 2 ( I know, I know, but Xbox Live is so distracting), and the game was excellent, until I got to the end. The ending left so many unanswered questions that I really wanted to know the answers to. It was one of those things that makes you want to know the next part of the story ever so much. I will have to wait another year or so until Halo 3 comes out.