| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce opportunities when operation effective notification hinders variable display of identification information.SOLUTION: An image display device 5 executes prescribed operation time performance on the basis of operation of operation means within an operation effective period when operation of the operation means becomes effective. Operation effective notification notifying a player of an operation effective period is performed. The operation effective notification can be executed by the image display device 5 or a sub image display device 51. Operation effective notification differing in mode between when the operation effective notification is performed by the image display device 5 and when the operation effective notification is performed by the sub image display device 51 can be operated.</p> |
