Mario has been kidnapped. You take control of Princess Peach and must work your way through a series of 2D side scrolling stages in order to save the classic mascot character. You select your level via a world map not unlike that of Yoshi's Island and can enter Toad's shop to purchase items. Peach isn't alone in her platforming adventure. She has at her side Kassaa, a magical umbrella. Kassaa can be used for a variety of actions, from striking enemies, to helping Peach float. Kassaa is a happy umbrella and always seems to smile.