After deciding that he wants to be like them, his monster parents, who are now bigger and more powerful, return to attack him and his friends. There, he meets Fionna and Cake and is impressed by their actions and how they live. As a result of disobeying them, Lumpy Space Prince is chased out of Lumpy Space and transported into the land of Ooo. In the episode, Lumpy Space Prince is depicted as a Marty Stu character, being described as an altruistic, philanthropic, selfless, and incredibly handsome prince who feeds his people gold-painted sandwiches as 'presents.' His parents, however, are slobbering monsters who desire the prince to be a monster and force him to eat worms and sharpen his teeth. His third appearance, which also marked his first major appearance, is in ' The Prince Who Wanted Everything.' His character was written by Lumpy Space Princess, who dreams to be with him. His second appearance was in ' Bad Little Boy,' where he was hosting a party. He appeared in the season three episode ' Fionna and Cake' and the season five episode ' Bad Little Boy.' In 'Fionna and Cake,' he made a cameo appearance, shown drinking from a blue cup. in Adventure Time: Fionna & Cake, is the gender-swapped version of Lumpy Space Princess. Peter Serafinowicz (' The Prince Who Wanted Everything') Lumpy Space Prince, referred to as Ellis P.
