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 most difficult words in the game, slightly harder than World 8, Bowser's Lair. 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. When the player enters his fortress, Ludwig will say 'Hum!' or 'Hmph!' before going into the fortress. One stage of this word contains watery globes circular of egg-shaped banded Chain Chomps, which are very vicious and will clamp their steely jaws on the player who tries to perform a Ground Pound on their posts. In the last stage of this world, Ludwig has placed several spikes that will attempt to crush anyone who gets unfortunate. In his lair, Ludwig will try to crush the player with a Flutter Jump right after Kamek releases 3 half-circular platforms from the abyss. When Ludwig is defeated, he relinquishes the key and escapes.