We know the game about keeping the balloon off the ground as “Keepy Uppy” due to the show Bluey. The father’s name is Bandit.

Setup: The same as traditional games of this sort. Inflate a balloon.
Action: Someone puts the balloon into the air. Each person hits the balloon back up into the air to keep it from touching the ground. The more acrobatic the better. Easy mode: control the balloon with soft hits so the other person can also controlled hit it.
In the episode, Bluey complains about it being too easy, so Bandit makes it harder. Fleur likes to make it harder by hitting it where I am challenged to keep it from touching the ground. Sometimes she transitions to Hard Mode after half an hour where other times she gets there after a few minutes. Sometimes she announces the change with “I am Bandit” while other times I figure it out because she’s started making it hard.
Anyway, she makes it more fun.