Volleyball + soccer + trampoline + music

= a sport called bossaball

This short video introduces the sport being played by at-risk kids in Bogota, Colombia (in Spanish, with English subtitles):

Here’s more about the sport: bossaballsports.com. You could use this for a research task.

It would be hard to demonstrate it yourself for the demonstration task, but you could gather together video clips and screenshots to show us how it’s played.