How about this idea for a mode/adventure?:
-Michael is hidden.
-While Michael is hidden, you hit shots to escape and build up a jackpot.
-You have to hit a number of shots to successfully evade.
-Michael will randomly pop out behind a hedge... When this happens, you have to hide. "Hiding" means you can't hit any switches (the aim is to get control of the ball and hold, catch your breath).
-Three switch hits with an emerged Michael means you are killed and lose the mode.
-Wait until Michael hides, then continue toward your escape.
Simple, but fun. And I don't think the evade switch hits has been done before.