This is a game that you cooperate with your friends not to drop the balloon.
Japanese page : Para-balloon with a Sheet
How to play and the rules
Everybody holds the end of a bed sheet and make a circle.
Put a balloon on the bed sheet.
Match the timing and let bounce the balloon by pulling the sheet.
Everybody move and let the balloon land in the center of the bed sheet.
Things we use
Instead of a balloon, you can use a beach ball, or a stuffed doll.