Game control method

A game program configured to be read and executed by a computer game device to which plural controllers are connected so that plural players are allowed to play together a game which develops on the game device by execution of the game program, wherein the game program is configured, with associated game data of game characters and game items, to cause the game device to perform the game wherein respective players control, by manipulating the controllers, corresponding game characters selected by the players, respectively, said program being configured to cause said game device to perform:

• (a) reading data of a game character and a game item attributed to the game character, if any, from each of the memory mediums inserted in said slots, said data of the game characters and the game items having been recorded when the players finished the game at intermediate stages in last plays, respectively;
• (b) allowing the players to resume the game from an intermediate stage, wherein the players are allowed to use their own game item in the game space, if any, which are read from the memory medium belonging to the player, respectively;
• (c) allowing the players to play the game together, wherein each player plays the game by controlling the player character which is specified by the data read from the memory mediums associated with each player respectively;
• (d) allowing each of the players to cause the player character under the control of the player to obtain items which appear in the game space during the progress of the game so that the items obtained are attributed to that player's character;
• (e) allowing the players to trade items obtained in the game space during the progress of the game;
• (f) prohibiting the players from trading items read from the memory mediums in the game space during the progress of the game;
• (g) allowing each of the players to store, in the player's original memory medium inserted in the slot, renewed data indicative of the player character and the game items, if any, which have been obtained during the progress of the game and attributed to the player character at the time of finishing the game at a stage of the game, wherein the renewed data replaces the data originally existing at step (a) in the respective memory mediums and the respective original data is deleted from the memory mediums;
• and
• (h) prohibiting the renewed data for one of the players to include an item which was included in the memory mediums belonging to another of the players at the step (a).