You must kill the right zombie at the right time or else bad things will happen to you. Your objective is to shoot the zombie displayed in the left hand side panel. Look carefully, as there are lots of variations to each zombie (missing arms/legs, different colored pants, etc.) Play now!
Great prank video! They set up a box so that it looks like a man is holding it up. People think they have knocked the poor guy down. :) Play now!