Halo 3 was one of the 360's biggest releases...when it first came out ages ago. Now, MS has made it available for free via download thanks to the Games For Gold promotion. The nearly 6GB download will take quite a while to download, so you might want to leave your console on overnight to avoid having it take up a lot of time during the day. Those who are die-hard fans of the franchise definitely have this game already, but if you're a casual or lapsed fan like myself, this is a nice way to see what the fuss is about for one of the 360's entries in the series without having to spend money to do so.