It’s like musical chairs, only you don’t use chairs. You can make this a large group game or small group game. I do it in small groups cause 50 kids is awful big. Give each kid a balloon, blow it up (not to big yet not to small) and that is their “chair”. Place the balloons in a central location, and have the kids circle around the balloons, play some music, my favourite is elevator music. And when the music stops they run to get a balloon. If they pop a balloon their out, if they don’t get a balloon their out, and obviously the last person standing is the winner, kudos to them.