 Mario Kart has 3rd party characters just like Smash Bros. I'm not talking about me suits, but actual playable characters. In the arcade version of Mario Kart, you can play as characters outside of the Nintendo universe, such as Pac-Man and Mamachi from Tamagotchi. With the developers being Namco, these additions aren't too shocking. Inclusions like these have only been made playable in this arcade version. Who would you like to see in the next Mario Kart?