Therefore, none of the following information can be found by normal means.
|Special World (unused world)|
|Game(s)||Newer Super Mario Bros. Wii|
|World number||F (unofficial)|
Special World (called World F by fans) is an unused world greatly resembling Super Mario World's Special Zone that was intended to be in Newer Super Mario Bros. Wii, but ended up being cut, supposedly due to time constraints and the impending release of the project. Unlike Cutland, the other unused world, there are actually levels that go with this world, but were also unused. As these levels were unused, they lack names. However, a user named mariomasters1 released the world, renaming all the levels and giving the world number the letter F.
This world contains 9 levels, not including one unfinished level.
|Level number||Level name||Preview||Description|
|F-7||Crazy Bang Bang Bridge|
- Similar to Super Mario World's Star World, it is likely that these levels would require secret exits to progress through the world, as the game files show that these levels (including inaccessible ones, such as the one in Gnarly Granitemine) have a secret exit.