Go to the garden zone. The one where you have to push the beans to grow the plants and the one before the table level. Go to the top just before the dark room-like area. Don't kill any butterflies!!! Wait till the beatle flies up and jump on him when he does. You should be able to hit the switch. Go back to the second or third floor. Jump on the butterflies and try to get on the platforms. Get all the items then Get the question mark. It will take you to a secret bonus game.