Yung-Yung's Playroom is full of all kinds of toys. On a platform on the left side of the room is a train set where a locomotive less than one centimeter long continually circles the track.
「湧湧的房間」有如一個小型遊樂場，擺著各式各樣的玩具，屋盒左邊的遊戲台上擺著一台不到一公分的小火車頭，不斷地繞著玩具軌道行駛。