Whack-a-Mole: everyone has at least heard of this popular arcade game, and now, SethBling brings it to Minecraft, with chickens! The game keeps track of both hits and misses, and lasts for 30 seconds. Approximately 3 chickens pop up at a time, and you have to whack them with a stick to score points. Neat!
There is currently no download link for this mini-game, although that may change in the future...