Thrillsville is the third world in Wario World. In order to access Thrillsville, Wario must beat the Dual Dragon in Spooktastic World. Thrillsville is a grassy plateau with a small snow area, containing an igloo that is the entrance to Shivering Mountains. To the left of the igloo, there is a pond and three giant flowers that lead up to the top of a stone, where the entrance of Beanstalk Way is.
After the two levels are beaten, the player can get the third Giant Treasure Chest Key from Red-Brief J.