This is the game that Max and his pal were playing on Friday night. Its one where you use all of your best climbing skills to get on top of the big green box.
Then you contemplate the best way to jump off.
If for a moment you get cold feet about carrying out your stunt, don't worry your good friend will give you a loving nudge over the edge (when Cooper showed some hesitation, Max hopped to his feet saying "I'll push you!" as if he was doing him a big favor).
And don't forget including extra acrobatics in your jump will win you extra points.
Switch kids and then repeat.