The start has a Waddle Dee and a sweeper. In a body of water is a Maximum Tomato. Break the blocks and go through the door. Ascend by a building and you’ll fight various enemies. Enter the next door and you’ll enter a room that has a Rainbow Drop. Use the Parasol ability to break the blocks and grab the Rainbow Drop. Exit the room and you’ll see a few more enemies ahead then you’ll spot the goal.