Very good replay value, not at its full potential unless played on the hardest settings.
1. Good side, medium difficulty
2. Bad side, medium difficulty
3. Good side, hard difficulty, and swich to Bad side on hard when you get stuck, and vise versa
I don't know about multiplayer, because I don't know anybody who owns this game. But the has awsome replay value, good cutscenes right from the movie (some that are only in the extended addition), and like Gamespot said, very good death animations. Don't believe all the bad reviews, I find it better than my Wii so wth.