Zombies have taken the presents out of Santa's base, and the way you get them back is by launching Santa at the zombies. It is Angry Birds geometry — pull back, pick an angle, let physics do the rest — with the twist that the projectile is a man in a red suit and the targets fall over in a satisfying heap when a stack above them gives way. Clearing a level takes the right first shot more often than it takes three careful ones.