Tweet Reward: Xbox LIVE Avatars Get Free Final Fantasy XIII Chocobo This December

Microsoft promised to unlock a special promotion as a reward for your Twitter prowess, and today, with a tweet progress bar that reached its goal — they delivered the goods. From blue bird to yellow bird, your Xbox 360 avatar will be able to call a Chocobo his (or her) bitch … come this December.

In order to get this for your avatar, you’re going to need to register for it if you haven’t already. If you’re in the US, you are going to want to register via this link right here, and if you’re in the UK, go ahead and use this link.