for 480 there are some fun indie games that are usually around 80 msp. I bought zombie death zone for 80 msp it's not a bad game it's quite hard and addictive. Also worms 2 armageddon is pretty fun you can get that for 400 msp which you can play on your own against the AI or online. It also has a campaign with about 32 levels to complete of challenges and you can unlock additional levels with in game points that you earn from completing the other levels.
Thanks, I'll look into zombie death zone. I don't really want another worms game, they really don't bring too much new to the table with subsequent releases.
There's a new game called white noise havn't played it myself but heard a lot of talk about it and it's only 80msp, you might have already known about it but just incase you havn't.
White Noise Online is pretty darn good. I have played it.
Haters say it is a terrible slender-clone, but we do not have a slender game on Xbox so WNO is a great placeholder.