Kate’s new leggings are too big for her. She wishes she didn’t have to wait to grow bigger. In Mimiloo, Boomer also wishes he was bigger—so he could be faster in Tack’s obstacle course! When he gets ahold of Tack’s Sizerchanger invention, he becomes huge! | Kate wants to make friends with the man in the moon. In Mimiloo, Kate and Mim-Mim accidentally blast off in Tack’s new rocket ship!