When using the Clown Cannon, the Junior Clown Car shoots a cannonball out of its mouth. The cannonball knocks back and damages the first enemy it hits.
Upon activating the move, the Cannon will charge; the distance and damage is influenced by the time the move is charged. At close range, it inflicts 8.5% uncharged and 20% fully charged. Over a distance, the damage weakens to 5.9% uncharged and 14% fully charged. Uncharged, the cannonball goes about half the distance of Final Destination, and fully charged reaches just short of the entirety of Final Destination.
Special Move customization was added in Super Smash Bros. 4. These are the variations:
Cannonballs have been very often launched from cannons on Bowser's airships, tanks, and boats in Super Mario Bros. 3; very large ones, known as Big Steely, were dropped from Bowser's Koopa Clown Car in the final battle in Super Mario World. In New Super Mario Bros. Wii, during the third boss battle against Bowser Jr., he uses Bowser's Koopa Clown Car and fires spiked, explosive cannonballs from its cannon.