New Racer: Mini Mario
The main character of the mini mario puzzle series, he would bring a unique robot character to the franchise that isnt a mario kart one off like Arcades robo mario and a remix of an already established character like metal mario, he would have high collision, good handling, but sub par acceleration, he is also in mini luigi, mini Pauline, mini peach, and mini dk flavors. With DK and Pualine as racers it only makes sense for the minis to join as well, it just feels right.
New Item Capture Kong
His kart would transform into capture kong, a enemy from his games that would capture the minis inside his cannon like apparatus, in transforming into capture kong he would be slightly slower but he gains the ability to launch capture barrels into opponents to trap then inside, to free then you need to mash the button to break free of this predicament. However if hit with an item he gets stunned more.
New Stage: Mini Land Plaza
The main setting of Mini Mario's games, mini land would take place in a toy carnival, uniquely their are three routes that the track will cycle though with each lap, but they are in random order so to add some surprises
The first route is in the carnival area filled with happy go lucky toads trying to win mini toys, circus kong another common enemy that tosses minis would act as obstacles in this route acting the same way as they did in the games tossing anyone colliding them unless they get hit by an item which stuns them
The second route takes place in a roller coaster area, the fastest areas are on the side but red and blue shy guy roller coasters will periodically run down these lanes alternating, so a balance of when and not when movie though the hazardous sides is key to proceeding
The last route is the mini toy factories, it is also the most hazardous with weilder fire bros and mechanic shyguys making mini toys constantly, the mini shy guys will chime in the nearest kart and try to latch on to slow them down, while the mini bomb bombs explode on you, also their is a mini but large sized pirahna plant in the middle part of the route that breathes fire. Again these routes will switch their order at random and you go though each route individually in each lap.