World 8 (Super Mario Bros.)

World 8 is the eighth world of Super Mario Bros. This is the final world in the game, leaving only four levels left in the game. In World 8, three ground levels are traversed, as well as the final castle level, which has an underwater section. World 8 is the only world in Super Mario Bros. without any checkpoints; the player is sent to the start of the level if defeated.

Levelmaps
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Trivia

 * A minor change to the soundtrack occurred between the original NES version and the All Stars version. In the NES version, when undergoing the underwater portion of the game, the music playing in the background was the underwater theme for most areas. In the All Stars version, it was the castle theme.