Little people live on a wall that plays sounds.

The little people run around inside the world of the wall, oblivious to us. 

However, when variously-shaped stamps, like mushrooms, barns, or long sticks of ice are attached to the wall, they appear in the world of the little people. The little people notice these and jump on.

Depending on the type of stamp, the little people will slide, jump, or climb on. If the stamp is removed, the stamp in the world of the little people will remain for a moment longer before disappearing.

Attach various types of stamps to the wall, and the little people will play with delight.

Smiley face seeds come falling down from above. When the seeds hit the stamps, different tones are played, depending on the type of stamp that they hit. And depending on the height of the stamp on the wall, the tones will change in pitch.

The wall will begin to play music using the various stamps.