The contestant sits in a giant bowl at the top of a wet slope. Two guards at the top of the hill (usually Popcorn) push the bowl down it, towards a pool at the bottom.
The contestant has to stay balanced inside the bowl as it slides down the hill and hits the water at the bottom. If they are still inside when the bowl ends up floating in the pool they win the game; but if the contestant falls out at any time they lose.
In couples' and family special episodes, the pairs have to sit in the bowl together. Both of the contestants have to stay inside the bowl at all times to win.