|Super Mario Bros.: The Lost Levels
|<< List of worlds >>
World D is the fifth and final secret world and the thirteenth and final world that was featured in the game Super Mario Bros.: The Lost Levels. Like the other secret worlds, it was left unused in Super Mario Bros. Deluxe. When Bowser is defeated at the end of World D-4, Princess Peach is saved, and, as such, Mario and Luigi beat the game.
|The first level of World D, this level has several small platforms and various enemies.
|The second level of World D, this level has several Koopa Troopas, Koopa Paratroopas, and Piranha Plants.
|The third level of World D, this level has many Bill Blasters and Hammer Bros.
|The fourth and final level of World D, as well as the final level of the game.