Kaeru no Tame ni Kane wa Naru (カエルの為に鐘は鳴る, For the Frog the Bell Tolls) is a Japanese-only action-adventure game with RPG elements. In this funny, cool, and unique game, Prince Sabure is on a journey to save the Mille-Feuille Kingdom and its beautiful princess before his rival does. Along the way, he gains the ability to transform into a frog and a snake and can use these new powers to make it to the overtaken castle even faster.

The rival, Prince Richard, is known as one of the characters who make an appearance in The Legend of Zelda: Link's Awakening.

In this movie, author Ryuto uses a few tricks and even death as a shortcut to help him beat the game in under an hour and a half.