Abstract: A game apparatus assigns an item, which includes one or more characters and in which points are set for each character, to a player. A storage device stores items owned by the player. When an instruction is given to synthesize a first item and a second item out of multiple items stored in the storage device, a control device generates an item that includes a specific character common between the first and second items and in which points of the specific character are set according to points of the specific character of the first item and those of the specific character of the second item.

Abstract: A similar polygon, which is larger than a basic polygon and has a similar shape to the basic polygon, is disposed to face the obverse surface of the basic polygon. A different texture from that of the basic polygon is pasted on the similar polygon. Then, a polygon image including the basic polygon and the similar polygon is displayed. When the polygon image is viewed from a certain viewpoint, the similar polygon is seen behind the basic polygon in a ring-like form, which serves as an edge of the basic polygon. As a result, a three-dimensional image using polygons can be provided with an edge.