The Fourth Dimension first appeared in MarioMario5321's movie, Into the Fourth Dimension. The story took a major role there as it was going to be taken over by Dimentio, with the help of minions, but was stopped by the heroes from the next dimension.
The Fourth Dimension also appeared in Starman3's Blooper 44 as YTR went there after Starman4 sent them a letter to come for the Fourth Dimension Anniversary, as it had been a year since the events with Dimentio happened. YTR and 4DR had a great time and Starman3 defeated Dowser there.
- Pascow Quario
- QuatiosBoy4 (Jbro409)
Areas in the Fourth Dimension
- Bob-omb Islands
- Orromp's Fortress
- Shark Plant Pond
- Hurl-ya Harbor (Metal Cap Course entrance)
- Blood Garden (Vanish Cap Course entrance)
- Lemon-Lime Town
- Dowser's Dimensional Swamp
- Bob-omberman's Bob-omb Factory
- Rainbow Rainmoon
- Dowser's Lair *Dimension Gateway* (originally Dimension D)
- The Fourth Dimension on the MarioMario54321 Wiki