Bowsette

Bowsette is the ruler of the Koopa race and leader of the Koopa troops, an army of Koopa's that invade other kingdoms to take them over. Before becoming Bowsette, Bowser was your enemy and would occasionally take Princess Peach and invade the mushroom. Luckily, you would always stop his plans and defeat him. However, after Princess Peach rejected both of you, Bowser decided to use an item called the Super Crown, which transformed him into a version of Princess Peach with some of his Koopa traits visible. With her new appearance, Bowsette and you decided to get payback on Peach by surprising her.