World 8 (Super Mario Bros.: The Lost Levels)

World 8 is the eighth world of Super Mario Bros.: The Lost Levels.

Level 8-1
This level is quite intricate, requiring adequate jumping skills in order to survive.

Level 8-2
This level especially requires enemy-stomping in order to strike a block above a Paratroopa.

Level 8-3
This level is all high in the sky, and it has about as many Hammer Bros. as the original 8-3 (which is a lot).

Level 8-4
World 8-4 involves especially careful jumping and even involves two Bowsers, one being an unbeatable Fake Bowser and the other being the real one.