From the Super Mario Wiki
Retrieved from "http://www.mariowiki.com/index.php?title=Special_4&oldid=1947138"
Special 4 is the fourth special world in Super Mario 3D Land. The world is in a dark green forest at night with yellow mushrooms. Special 4 contains six levels, including the airship, and one Toad House. Boom Boom and Pom Pom are the bosses fought at the end of the world.