Bowletta

Bowletta has only appeared in Mario & Luigi: Superstar Saga, where Mario and Luigi teamed up with Bowser to go to the Mushroom Kingdom. After Cackletta, the evil bean witch, is beaten at Woohoo Hooniversity by the Mario Bros, Fawful, her strange toady, sucks up her soul in his headgear to save her life. After days of searching for a body weakened enough for Cackletta to possess, they find King Bowser, unconscious after having been separated from the Mario Bros. by Popple, the shadow thief.

Desperate for anyone to control now, Fawful and Cackletta agree to possess Bowser, and Bowletta is born. Once in her new body, she discovers that Princess Peach and Queen Bean had anticipated her plan to steal the Beanstar and tricked her. She steals the Koopa Clown Car and finds the Mario Bros. in the Little Fungitown immigrant community with Peach. Since Mario is sick from Bean Fever, and Luigi is out trying to cure him, Bowletta is able to kidnap Peach easily. Upon meeting the shocked Luigi during her escape, she tells him to fix the broken Beanstar and bring it to Joke's End.

The Mario Bros once again try to trick Bowletta. They bring a fake Beanstar to Joke's End, but not even Fawful falls for this trick, and he forces them to give up the real thing. In a last, desperate attempt, Mario makes Luigi dress up as Princess Peach, and they manage to trick both villains long enough to save Peach.

Infuriated by this new trick, she flies to the Mushroom Kingdom and hijacks Bowser's floating castle. The Mario Bros. now must face Bowletta outright, and engage her in battle. This time, it is her turn to trick them, and she swallows them both whole. They end up inside her belly, where the two brothers finally fight to the death with Cackletta's soul (The soul is the true final boss of the game).

Bowletta could be considered one of the most dangerous enemies in all of the Mario games. She has all the powers of Bowser, including some dark magic of her own- such as the ability to turn into Dark Bowletta and create huge meteor showers. More alarming is what she owns- she has control over not only Fawful and her warfare, but all of Bowser's property as well- including his castle, Clown Car, soldiers, and even his children. Despite this, it is unlikely that Bowletta will ever appear in another Mario game again.