The Angry Birds HD gives the most effective survival with the optimized crisp visuals and graphics. The large screen size lets you intuitively control your winged crusaders. Simply dish out reprisal on the green pigs who have stolen the birds' eggs. Utilize the unique and destructive powers of the angry birds to put down waste to the pigs' fortified castles. The game offers challenging physics-based castle demolition, 105 unique levels and hours of gameplay.