I'm having a great time playing UFC Undisputed 2010 right now. There's nothing like getting a good hit against the chin and flooring a guy then running around celebrating like a little kid. In any case, one of the issues that a lot of people have with the game is the takedown-ground game. It's just a lot of rolling around and trying to submit a guy. I don't know how "realistic" it is, but it does irritate me some. I suppose that's the difference between playing a striker (which is presumably easier to play) and a submissions/grappler (which is presumably more difficult to play).