World 5 (New Super Mario Bros. 2)

World 5 is the fifth normal world in New Super Mario Bros. 2. It has a sky and mountain theme, and the levels are either in the sky or on a mountain. The map music is the same as World 7 from New Super Mario Bros. Wii. This world is unlocked once the player completes 4-Castle or World Flower. The boss of this world is Ludwig Von Koopa.