The invention includes a group information storing unit for storing a relationship between characters and a plurality of groups formed by dividing the characters according to roles these characters play in a game, and a character moving unit for specifying, when a pointing means is brought into contact with one of sensed areas on an image display unit to be associated with one of the groups, a characters in the group associated with the sensed area that is touched, according to information stored in the group information storing unit, and for moving the specified characters simultaneously in a direction associated with the sensed area that is touched, by an amount corresponding to a predetermined distance.