Each player builds a pyramid of buckets of five different colors before himself. The starting player challenges the next player with a card -- the next player must then raise the stakes by playing a higher value of cards of the same color -- successfully doing so passes the challenge on to the next player, and so on until someone falters -- and must lose a bucket of that color from his pyramid. But the arrangement of colored buckets in the pyramid is important, as players are battling gravity as well -- if you are forced to lose a bucket from the bottom of the pyramid, all those supported by it tumble down as well! Clever cardplay will keep you in the game until your last opponent kicks the bucket, and you claim victory!