Avatar: 2 minutes + B button = 1000 Gamerscore

If you're in the need for a quick Gamerscore boost, then look no further than the rental shelves and a child friendly game called Avatar The Last Airbender: The Burning Earth (that's one long title). This game is a Gamerscore whore's dream, because you can not only get all 1000 Gamerscore with little effort, but it literally takes less than two minutes to do so. We're serious, just look at the game's pitiful achievements. All you'll have to do is pretty much run into a corner, tap the B button about fifty times and in around two minutes you've got yourself 1000 Gamerscore. The hardest part will be surviving the game's awful cut-scenes, but you're a trained Gamerscore warrior, so we think you'll be fine.