Zelda: Twilight Princess Easter Egg - Hidden Marble Game

Go into the fishing house and look (First Person Mode) at the bench next to the door. (I found this because the girl there told me to look around and that´s what I did ^^)
You will find some weird box.
Look at it until the girl behind the counter tells you how to play the game and enjoy.
Ah, yes, and alsao have a look at the pictures. It´s pretty funny ^^