| 摘要 |
PROBLEM TO BE SOLVED: To securely inform a player if operation of a stop button is in an effective condition or not to the utmost. SOLUTION: In a slot machine provided with a stop button to stop a reel and an operation effective lamp surrounding the stop button, the operation effective lamp flashes at different flashing periods based on if operation of the stop button is in an effective condition or in an ineffective condition to inform a player of the condition of the stop button. Compared to a slot machine in which a specified lamp is lighted in the operation effective condition of the stop button, and in which the lamp is lighted off in the ineffective condition, the player can be prevented from losing a chance of starting pushing because the lamp is not lighted in spite of the operation effective condition.
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