World D

World D is the fifth and final secret world that was first featured in the game Super Mario Bros.: The Lost Levels. In this World, the player will fight the real Bowser, instead of the False one. It was removed in Super Mario Bros. Deluxe.

World D-1
Either way, the Hammer Bros. will always approach you. Take careful stepping at the large pit with Parakoopa. If you land on the high block with the second Parakoopa, jump right. You'll reveal a 1up.

World D-4


Actually, the landing here is better AND easier than the World 8 castle. At the near end, here's a trick. Be Super and go to the landing w\Lavaball and two-block ceiling. Run into Lavaball and you'll be small; able to fit into the spot easily. That temporailty invincibility will last once you make it to Bowser.