World 8-1 (Super Mario Bros.) - Super Mario Wiki, the Mario

World 8-1 is the first level of World 8 in Super Mario Bros. and the twenty-ninth level in said game. It is the longest level in the game. In VS. Super Mario Bros., this is the only level that has a higher time limit than its original version.

Mario Wiki

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World 1-1 (Super Mario Bros.), MarioWiki

New Super Mario Bros., MarioWiki

Super Mario Bros., MarioWiki

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Mario Wiki