Gravball

Gravball is a popular game played by Human children. The game consists of a floating gravity ball, and it is played on repulsor courts. The gravball is "skimmed" across the court, although the mechanics of the game have never been described.

It is a popular activity available on playgrounds. As a child on Eridanus II, John-117 was not allowed by the other kids to play it, because he always won.

A table game named "Gravity Ball", played in bars such as Eddie's In The Rock in The Rubble, may be a smaller-scale variant of the game.