World 9-2 (Super Mario Maker for Nintendo 3DS)
From the Super Mario Wiki
World 9-2 is the second level of World 9 of Super Mario Challenge from Super Mario Maker for Nintendo 3DS.
The level starts with Conveyor Belts that make stairs and are going left and a flying Boo above. Two more Conveyor Belts going left come right afterwards with Coins above them. Then comes the first Boo picture made out of Cloud Blocks with Donut Blocks and Coins. Path goes two directions (up and down). Below are three houses with a Big flying Boo in them. Above, there are two Super Mushrooms inside ? Blocks and a house with two Thwomps of different sizes in it. After this, two pictures of shy Boos, but only one has coins. After this is a hall of 2 Dry Bones and 12 Coins. Then the final Boo picture appears just before the flag to finish the level.