Mesoamerican Ballgame was a lot like volleyball, except the ball involved was nine pounds of solid rubber. And there were beheadings.
Players had to keep the heavy bastard in play by bouncing it off their forearms, hips, elbows and (if you're a sissy) bats and rackets. Points were scored by striking the ball against the opponents' wall, while points were lost if the ball hit the ground more than twice.
Face blocks, while legal, cannot in good conscience be recommended.
The Mesoamericans included one final draw to wow their crowd. Either team could score an instant win by knocking the ball through an impossibly-high sideways-basketball-hoop (sort of like Quidditch with badass Mexicans).
Team Half-Lizard People are so boned.