It is revealed in MarioMario54321's series The Moon World that the moon on the Star World map is the moon world and by Dimension Law, The Mushroom Kingdom has an Identical Map.
Its extra dimensional plane can not only be accessed by a secret blue pipe from Peach's Castle, but also from Dinosaur Land, Although this Star World might not be the same one that the Star World Humans inhabit.
- On the map (shown above), all colors of the rainbow are shown except for orange. Other colors such as black, white, brown, and grey appear as well.
- This is the first alternate dimension in MM's videos, and is a recon.