Follow the story of a flock of birds whose eggs were taken by cruel pigs. The birds are preparing an epic vengeance because they cannot forgive it. Your aim is to assist them. Put a bird in a sling and throw it at one of the pigs to hit it. Each bird has a unique trait that will let you use them to your advantage against a variety of enemies and obstacles. You will score more points for killing more pigs. Keep up the fight for justice!