World 7 (New Super Mario Bros. Wii)

The Cloud Castle Courtyard is the 7th world in the game New Super Mario Bros. Wii. It is one the more difficult worlds in the game. Like the name implies, the area takes place in the clouds and sky. However, it does contain several enemies in its stages and is often abundant in items (mostly Ice Flowers, Fire Flowers and Propeller Mushrooms). Ludwig von Koopa himself is the boss of the world, and the player will see him on the roof of a fort he built with traps. The Enemy Course in this area contains a single Lakitu that throws Spinies.