Since Petuini likes games, she creates one named Stump Petuni. You have to ask her questions and see if she gets it right. The game gives you choices that make a question. The choices are, "which person, which room, which tree stump," " does Mario, does Luigi, do the X-Nauts," "like, decorate, ???," "the most, for the heck of it, ???." Petuni can only answer "Which person does Mario like the most?" If you ask her that, she'll say Peach and give you a Mystic Egg, which heals 5 HP.