Green Pigs

The Pigs are the main antagonists of the game Angry Birds. The Pigs reappear in Angry Birds: Rio as balloons.

They are green pigs who appear as the archenemies of the Angry Birds. This is mainly because the pigs would constantly steal the birds' eggs, angering them.

There are small, medium, and large pigs. The large pigs make their first appearance as bosses in the last level of a stage: After a stage of the game is completed, a still image of the injured pig boss is seen before the levels of the next stage begin. Throughout the levels of Angry Birds, the pigs can be seen standing on or near obstacles which the player must knock down by launching the Angry Birds from a sling shot. Depending on the impact of the launched bird, the pig may show signs of injury (such as a black eye) if the impact wasn't strong enough. If the impact was strong enough, the pig would vanish into smoke, indicating its defeat. The next level begins once all the visible pigs are killed by the knocked over obstacles.
 * Stage one: Pig with a helmet
 * Stage two: Pig with a moustache
 * Stage three: Pig with a crown