And also coincidentally, to make penguin friends. Huh, if Casper's onto something with his kidlit theories, I wonder if they're meant to be Mr Popper's Penguins.

Also, it looks like your new buddies are playing what is commonly called... the Mesoamerican Ballgame. With one variation called the Mayan Ballgame and that's the one that was in Popol Vuh, with like the story of the Hero Twins.