Must play Xbox 360 games. What are some really good Xbox 360 games? Since I just subscribed to gamefly, I'd love to get opinions on some of your favorite games. Doesn't necessarily have to be one with good online play, it can just be one of those fun campaign play through games. games I already have or plan on renting : COD: Black Ops Mortal Kombat 9 Duke Nukem Forever Dead Space 2 Battlefield 2 Dead Rising 2