The Prince of Sablé and Prince Richard of the Custard Kingdom have long been rivals. When they discover that King Delalin has invaded the Mille-Feuille Kingdom and captured princess Tiramisu, they both set off on a competition to rescue the princess first, and gain favour with the royal family.
As the Prince of Sablé, you view the world from a birds-eye perspective where you can explore and talk to people. In the fields between stages you will come across enemies. You do not battle enemies directly, but enter an automatic battle where the victor is the one with the most hearts. As you progress, you will acquire more hearts in your life bar in order to take on larger enemies and allowing you to advance to new areas of the map. When you become strong enough, some enemies will simply run from you.
The ultimate aim is to infiltrate the Mille-Feuille Kingdom castle, but you can only do this in small sections at a time. The action in the castle, as well as in caves and similar action scenes, is in a side-scrolling platformer perspective. To reach other sections of the castle you have to improve your abilities and take on special transformations.
Early in the game you transform into a frog, with improved jumping power, but reduced attack power. You can also communicate with frogs in this form. Later you can also transform into a snake, allowing you to sneak into small gaps and talk with other snakes.
