The main draw of Princess Peach: Showtime is the transformations that Peach undergoes in each stage as part of her quest to gain control of Sparkle Theater back from Grape and the Sour Bunch. Each of the transformations in Princess Peach: Showtime corresponds to a Sparkla, the hero of each stage whom Grape has imprisoned in the theater's basement. However, not all of these transformations are created equal, some introducing more interesting concepts and leading to better gameplay design than others.