Angry Birds Celebrate 2nd Birthday By Slamming Into Cake, Murdering Pigs

Angry Birds is celebrating its second birthday, and players can join the festivities with a new Birthday 2.0.0 update.

The update, available for iOS, adds 15 new birthday-cake themed levels, a new orange bird type, new menus, and additional achievements. Pick it up in the iTunes App Store for $.99 on the iPhone/iPod Touch or for $4.99 on the iPad. As an Android user, I'm assuming my party invite is in the process of being delivered.