Bowser Jr. (1998-) is Bowser's 8th and youngest child. Of his siblings, he is the dumbest and least popular of them all. He got in Super Smash Bros, albeit only as a vehicle for all 7 of the Koopalings.
Bowser Jr. was born in 1998 to an unknown mother and Bowser. As a child, he would love to imitate his father, and loved to cause mischief. In 2002, he attempted his largest act of mischief: capturing Princess Toadstool, whom he pretended to think was his mother. He failed after he was defeated by Mario.