Professor Von Drake has invented a game-fun floating dome. It flits a Mousekeball back and forth. Whoever catches him first and holds three seconds Mouseke-holds wins. When the ball leaves the dome, the Clubhouse friends take on the hunt for him - and eventually catch him all together.
- A doorbell buzzer button
- A bottle of dish soap
- A jumbo plunger
- A purple pillow case (Mystery Mouseketool)