This article is a work in progress. ...Well, all the articles here are, in a way. But this one moreso, and the article may contain incomplete information and editor's notes.
This game is still under active development. Be aware that any unused content you find may become used or removed in the future. Please only add things to the article that are unlikely to ever be used, or went unused for some time. If they do get used, please remove them from the page and specify in the edit summary!
There are some unused animations of the character's key art moving around, namely for characters such as Toadette
More unused tracks and graphics
Have you ever played a Mario Kart game and thought "Man, I wish I could play this game on my phone and waste a ton of money buying microtransactions"?
If so, Mario Kart Tour is the game for you! With many recycled tracks that were already in Mario Kart 7!
An additional texture set for Red Koopa (Freerunning), showing him with a green hat and shell instead of red.
Light-Blue Comet Tail
An unused set of textures for the Comet Tail, being light blue with a yellow stripe in the middle.
A sprite for Gold Mario. He cannot be played as outside of Coin Rush so this sprite is never shown.
A sprite for the Para-Wing kart, which is nearly identical, save for the tires, which are taken directly from the Pipe Frame kart.
A sprite for the Gold Standard kart. This kart cannot be selected outside of Coin Rush, so this sprite is never shown.
A sprite of the Pipe Frame without any tires.
A sprite of the Standard Tires.
A sprite of the Pipe Frame tires. This sprite and the previously mentioned sprite of a tireless Pipe Frame could mean that at one point in time, kart customization could have been in the game at some point.
A low quality sprite of the Gold Glider
Several unknown items can be found in the game's files, named BoostItem, ItemExchange, PartsScoreUp, and PartsSkillUp respectively.
Additionally, unused tickets with the boost items above can be found, alongside 3 tickets with empty circles in the middle of them.
A sprite for the unused stamina mechanic used in the beta. Like many other mobile games, participating in a race would consume one stamina, and once the stamina was depleted, you could not participate in any more races. Stamina could've originally be bought with Rubies (then called Emeralds).
Gold Mario Skill Item
Gold Mario can only be played in the Coin Rush mode, and cannot be played in Multiplayer nor normal races. Despite this, he has a skill item known as 'Coin Vacuum,' which is used nowhere else in the game (except Coin Rush.) When hacking Gold Mario to be playable in the normal game, the item can only be used on favorite courses and will act similar to when attracting coins in Coin Rush but with a smaller radius.
SNES Ghost Valley 2
As shown on one of the thumbnails for the 2020 Halloween Tour, Ghost Valley 2 from Super Mario Kart was planned to appear. However, as of right now, it has yet to make an appearance in any tour.