The Koopa Clown first appears in Mario Kart 7 as an unlockable kart part. It boosts handling, but lowers acceleration and off-road slightly. It should also be noted that the Koopa Clown is tied with the Birthday Girl and Cloud 9 for having the highest handling of all kart bodies, and it has the highest handling of any kart body that doesn't have a negative impact on the weight stat.
Although it does not appear in the original Mario Kart 8, the kart reappears in Mario Kart 8 Deluxe as an unlockable kart body. It is redesigned to appear smaller. The exhaust pipes are shorter and it is equipped with a pair of propellers that open up on gliders and anti-gravity segments. The tips of the propellers also have a secondary color. Much like the Landship, the kart has different palette colors for the Koopalings, which match the colors of the Koopa Clown Cars they use in Super Smash Bros. for Nintendo 3DS and Super Smash Bros. for Wii U. For other characters, it uses the default green color. Its engine sound is shared with the Biddybuggy. CPU Bowser, Bowser Jr. and the Koopalings occasionally use this body during races. It gives off a small boost to weight, water speed, handling, water handling, and the highest boost to traction, while speed, acceleration, and mini-turbo are hindered. It shares it's stats with the Tanooki Kart and the Master Cycle Zero.
The Koopa Clown returns in Mario Kart Tour, where it is classified as a Super kart. Mini-Turbos last longer and yield more points when using this kart. It uses the Standard tires from Mario Kart 8 and Mario Kart 8 Deluxe. Unlike in Mario Kart 8 Deluxe, the rim of the Koopa Clown does not change color regardless of whether or not one of the Koopalings is driving it. The propellers no longer pop out while the kart is gliding. The game also has a purple version of the kart called the Dark Clown, which is also classified as a Super kart.
* indicates a favored course upgraded to a favorite course after reaching level 3. ** indicates a favored course upgraded to a favorite course after reaching level 6.
* - Indicates downloadable content in Mario Kart 8 • ** - Indicates content available in version 1.6.0 of Mario Kart 8 Deluxe • - Indicates exclusivity to Mario Kart 8 • - Indicates exclusivity to Mario Kart 8 Deluxe