Played with a heavy rubber ball and using only your hips, knees or elbows, you have to hit one of six goals. These are macawsˇ heads perched on the walls bordering the ball court. This game, called pok-ta-pok, is not being played for fun. It is a sacred ritual intended to win the favor of Chaac, the rain god. And it.happens that the gods are fond of offerings and sacrifices. The losers in this match must lose their heads.