Bowser Jr. - New Super Mario U Guide - IGN

Bowser Jr. is the kid son of the King Koopa himself, and has helped his villainous father kidnap Princess Peach on more occasions than one. He calls her

Sparkling Waters-Castle Larry's Torpedo Castle - New Super Mario U Guide - IGN

Ludwig von Koopa - New Super Mario U Guide - IGN

New Super Mario Bros. U - Super Mario Wiki, the Mario encyclopedia

Nabbit - Super Mario Wiki, the Mario encyclopedia

Meringue Clouds Airship Bowser Jr. Showdown - New Super Luigi U Guide - IGN

Miis - New Super Mario U Guide - IGN

Mushroom House - New Super Mario U Guide - IGN

World 8-Air Ship - New Super Mario Wii Guide - IGN

New Super Mario Bros U - All Koopaling, Bowser Jr, & Bowser Boss Fights

Meringue Clouds Airship Bowser Jr. Showdown - New Super Luigi U Guide - IGN

World 8-Air Ship - New Super Mario Wii Guide - IGN

World 8-Air Ship - New Super Mario Wii Guide - IGN