A game about stuffing balloons as a team, without talking. But it's a card game - there are no actual balloons.

From BoardGameGeek:

A game designed for release at UKGE 2022, to celebrate the fact that Bez would be literally stuffing games into balloons. Players co-operatively fill 10 balloons with objects. Each object card has a weight and spikiness. Each pile must have a card from every player, but most of them have to be played face-down! Also, you can't talk. By using facial expressions and intuition, and learning the nature of the deck, you will learn what your teammates are likely to play and play better cards. If any 'balloon pile' has a weight or spikiness rating that's too high, the balloon has burst, and the game is over. Try to fill 10 balloons to win the game! -description from designer