To provide a game machine wherein a treatment burden for picture images is reduced and, the interest of a game player can be retained by displaying the moving of more patterns.

A three-dimensional image treatment section selects a plurality of kinds of wing-flapping patterns from among flamingos having series of wing- flapping patterns which are different from each other in order, and arranges by rearranging the wing-flapping patterns in order in such a manner that the wing-flapping patterns may be arranged at locations of respective flamingos 61a to 61e which are displayed on a display screen 6a. The three-dimensional image treatment section forms the picture image 61 on the display screen 6a as a display image based on those arranged wing-flapping patterns. As a result, a state of the picture image 61 wherein respective flamingos 61a to 61e move while flapping the wings conforming to the wing-flapping patterns is displayed on the display screen 6a.