The game device comprises display means for displaying game images, operation means operated by game players, and control means for controlling a game. On the game device, a competition game which is played by a plurality of game players is made to win and lose. The game device further comprises storage means which count values of a prescribed trick played by the game players, nicknames related to the prescribed trick, and nicknaming conditions for giving the nicknames. The control means judges based on operation states of the operation means operated by the game players whether or not the prescribed trick has been played by the game players in the progress of the game, renews the count values when it is judged that the prescribed trick has been played, and gives the nickname to the game players when the count values have satisfied the nicknaming conditions. The display means displays in the game images the nicknames, related to the game players. The game device can give a name expressing individuality of the game player.