| 摘要 |
PROBLEM TO BE SOLVED: To provide a pattern display device which is provided with a plurality of background pattern change contents, selects a plurality of background change patterns in response to a game state and is operated in a Pachinko game machine. SOLUTION: When a prize-winning signal which indicates that a game ball wins a prize is obtained in a first kind start port 4 arranged on the surface of a game board 10 in the Pachinko game machine, a display area background 62 and the display pattern of a background patterns 66 are changed in response to the game state and a probability concerning a special pattern display device 2. The changeover control is performed when a prescribed game state is generated. |
