Many bottomless pits and more enemies have been added as well. Various ?s, especially those that contain power-ups, are often either moved to much harder-to-reach places, or even removed altogether, or the power-ups are replaced with coins. Unlisted levels are mostly the same as the corresponding level in Super Mario Bros., but with minor difficulty increases.

The following table summarizes the changes. In the arcade version, most of the 'easier versions' (all except 1-3) are replaced by the 'harder version' to make way for new levels. 1-3 is the easier version of 5-3 1-4 is the easier version of 6-4 2-2/2-3 are the easier version(s) of 7-2/7-3 and 2-4 is the easier version of 5-4. has some levels repeat, with an easier version with some obstacles removed ( Fire-Bars in the castle, fewer enemies, etc) earlier on, and then a later 'full' version, e.g. The original version of Super Mario Bros. 3, instead of being colored red and white.ĭetailed set of level differences Six new levels were created for the game, all of which were reused in Super Mario Bros.: The Lost Levels.įire Mario is now more yellowish, much like his sprite in Super Mario Bros. This game has higher gameplay difficulty than the original Super Mario Bros., with fewer warp zones and power-ups, and more enemies.

The plot is the same as the original Super Mario Bros., featuring Mario and Luigi (second player only) setting out on a quest to free Princess Toadstool from the evil Bowser and restore the fallen kingdom of the Mushroom People.

Super mario bros world 6