Clown Kart Dash
Upon using this move, there will be a small delay where the vehicle activates the wheels, and then boosts forward. If no further button presses are made, the move will inflict 4% damage on contact with opponents. However, if a direction is held on the control stick, the Kart will drive faster, and will inflict 6% damage to anyone it hits along the way at first, gradually growing to 7% after a longer drive. The Kart will eventually spin out, where the spin out inflicts 12% damage. While driving, Bowser Jr. can jump out and do an aerial, or force a spin out by pressing an attack button or if the opposite direction is inputted. At lower percents, the vertical knock back employed by ramming the vehicle into an enemy can easily lead into an aerial. At later percents, the spin out can effectively KO enemies from around 125%. If Bowser Jr. jumps out of the move in the air, he will lose his remaining aerial jump, but it can be done even if he has already used his aerial jump. If Bowser Jr. drives off the edge of a platform, he will automatically jump and keep dashing. If Bowser Jr. hits a wall in the air, he will bounce up the wall, ending the dash, but can still use his midair jump. Jump-canceling the start of this move lets you travel faster and plays a unique sound effect. The move has a minimal amount of heavy armor that can withstand attacks that deal no more than 8%.
Being able to drive around in it is similar to the Wario Bike.
Special Move customization was added in Super Smash Bros. 4. These are the variations:
This move is likely based on the Koopa Clown kart body from Mario Kart 7, which in itself was based on the Koopa Clown Car. However, neither Bowser Jr. nor the Koopalings appeared in Mario Kart 7, the only appearance of the Koopa Clown at the time. Before Smash 4, Bowser Jr.'s only appearances in the Mario Kart games were Mario Kart: Double Dash!! and Mario Kart Wii, while the Koopalings were only in Mario Kart 8.
Both Bowser Jr. and the Koopa Clown kart return in Mario Kart 8 Deluxe. In addition, when the Koopalings are riding the Koopa Clown, its appearance changes to their version of the Junior Clown Car from Smash 4 and Ultimate.
The Junior Clown Car would later be shown to have retractable wheels in Mario Tennis Aces, as seen in Bowser Jr.'s forward/backward Trick Shot (Wild Ride). However, the wheels are black and not orange as they are in Smash.