This page is for all the beta elements of Mario Kart Dimensions.
Sea Side Hill
A mysterious course in the game's files (known as x_course005) was found. The course is simply a nighttime version of GCN Sherbet Land, without the Freezies, Shy Guys or Item Boxes. However, for some reason, Thwomps appear in the Ice Cave, and blue Monty Moles with red noses (in the default "T" stance) at the skating rink. In game, the course is called Ice Land.
A mysterious course, similar to that of "Ice Land", is a Peach-related course that was found in the game's files. The course, in-game, is just a totally black course with no track data, lap data or ground. The course includes three billboards with Peach on them and two Goombas in "T" stances.
Blue Winged Spiny Shell
The Blue Spiny Shell, as it appears on the North American boxart, has wings, however, the one in-game does not. The winged variant was found in the game's files, but was cut-out last moment due to having glitches with the homing-in setting (the shell would try and go through walls trying to get to first place).
In an interview with the head of production, "Spooks", it was confirmed that a Golden Shell was supposed to appear in the game. It would have been a stationary item, that would home-into the first racer that passes it (unless it was the user). It is thought that it was replaced with the Whimp.
Goomba, Hammer Bro. and Kritter
Originally, Goomba was meant to be an unlockable character, but was replaced by Baby Luigi. Hammer Bro. and Kritter were also supposed to be in the game, but were replaced by Dixie Kong and Petey Piranha, respectively.
- However, being replaced in this game, Hammer Bro. and Kritter both appear in the partner to this game, Mario Kart Rush.
Characters from Super Mario RPG: Legend of the Seven Stars
There has been some data in the game found that proves that Geno, Mallow, Booster, Boshi, Croco and other characters from Super Mario RPG: Legend of the Seven Stars were going to appear. It is known that Mallow was cut very late in development, as he has model data of him holding an item, driving, drifting, and doing tricks (with only his Submarine form lacking). The others do not have correct model data, as, in game, their models are different coloured models of Toad and Koopa. Additionally, Booster's model is the same as Wario's except with a red shirt.
- Mallow and Geno will later appear in Mario Kart Rush, however.