To cause a player to achieve a transition in putout balls by reproducing and displaying a putout ball graph and to cause the player to accurately acquire a putout ball state even during the game.

A game information display device 3 reproduces and displays a putout ball graph representing a relationship between out balls and a ball difference (difference game value) so as to cause a player to achieve transition in the putout balls. When reproducing and displaying the putout ball graph, this game information display device displays a bar graph representing a range of a minimum value and a maximum value of the ball difference of that day, with the bar graph matching a plot position of the latest ball difference in the putout ball graph to be reproduced and displayed. The player can thus acquire in which position the player transits with respect to the fluctuation range of the ball difference of that day and also accurately acquire the ball difference state even during the game.