PufferBall is based of basketball (pretty obvious).
It is a multiplayer mini-game. You assign each player a team (gold or diamond), one player gets the ball first and tries to throw the ball into the hopper with their team's material block below the hopper. When a team gets to 5 points, they win. When a team wins, they must click the reset button and restart the game, or keep track of points.

Additional Notes

*I have no idea how to do the scoreboard thing.
*The 'Night' Button turns the time to night, that has no purpose anymore. Don't press it, for the time will not change because of the daylightcycle rule.