Bowser Jr.

Bowser Jr. is an army general in the Koopa Kingdom and Bowser's son. He serves usually as one of the final bosses across the Super Worlds along with Boom Boom. He appears in the last few levels of World 8 in all the Super Worlds he has a major role in. He appears specifically in 8-4 and 8-5 of World 2D, and 8-3 and 8-5 of Mayro World.