SMB-U Secret Levels

--------------------------------------------------------------------
World						Level(s) to Unlock Secret
--------------------------------------------------------------------
Acorn Plains:				(Tilted Tunnel)
Layer Cake Desert:			(Spike's Spouting Sands)
Sparkling Waters:			(Haunted Shipwreck)				
Frosted Glacier:			(Swaying Ghost House)
Soda Jungle:				(Bridge over Poisoned Waters)
Rock-Candy Mines:			(Grinding-Stone Tower)
							(Walking Piranha Plants!)
Meringue Clouds:			(Spinning Spirit House)
Peach's Castle:				(Meteor Moat)
--------------------------------------------------------------------