Bowser Jr. (SSBU) - SmashWiki, the Super Smash Bros. wiki

Bowser Jr. is a playable character in Super Smash Bros. Ultimate. He was revealed for the game along with the rest of the veterans on June 12th, 2018. He returns with his Junior Clown Car, and the Koopalings return as alternate costumes alongside him. As in Super Smash Bros. for Nintendo

Bowser Jr. (SSBU)/Down special - SmashWiki, the Super Smash Bros. wiki

Hero Super Smash Bros. Ultimate

Mario, Smashpedia

Bowser Jr. (SSBU) - SmashWiki, the Super Smash Bros. wiki

Bowser Jr. (SSBU)/Down aerial - SmashWiki, the Super Smash Bros. wiki

Bowser Jr., MarioWiki

Bowser (Super Smash Bros. Ultimate), Smashpedia

Super Smash Bros. Melee - 13 to 17 / Characters - TV Tropes

Bowser Jr. (SSBU)/Floor attack (front) - SmashWiki, the Super Smash Bros. wiki