Wow it’s only be around for two years? Imagine life without Angry Birds (Deep thoughts on a Friday). Anyway, they’re starting a series of promotions for their birthday. The first is 15 new levels.
Fans everywhere can enjoy a new “Happy Birdday” update for Angry Birds, which features 15 delectable new birthday cake levels, spiffy new menus and graphics, and special birthday achievements. As a birthday gift to our fans, all episodes are now unlocked! Also make sure to check out our new Rovio channel, which gives you instant access to your favorite Angry Birds content. You are just one tap away from news, games, videos, Facebook, Angry Birds shop, and much more! The update will be available for iOS on Sunday, with other platforms coming soon.
They have plenty of other things lined up like Barnes and Nobles Scavenger hunts and the like. You can read the details on their blog.