This is a "Game Jam"-esque game which adapts the Mesoamerican ballgame into a virtual format.
Prebuilt binaries are available on the releases page for MacOS, Linux, and Windows.
To build from source:
$ go run assets_generate.go
$ go build
You lose if the ball hits the ground, and you get one point for getting the ball through the ring. The game is quite difficult! On hard mode my high score is 13, and on impossible my high score is 3.