Space snowball is, essentially, the most awesome activity that can ever be. It is a sport based on traditional snowball fighting, except it's in space. And has trebuchets. And space dinosaurs. And ninja. And giant robots. It is unfortunately impossible to play such an awesome sport in reality, so all rounds of space snowball must be played within the holocabana.

A game of space snowball was introduced towards the end of Take That Us, and the plot of Wibbly Wobbly, Timey Wimey significantly features that same game.