| 摘要 |
PROBLEM TO BE SOLVED: To provide a slot machine capable of changing the lottery probability for introducing a specific game during a specific introduction game for adding unexpectedness to the game. SOLUTION: Special games to be played in this slot machine include at least a specific game with a high winning probability and a specific introduction game with a high probability of introducing the specific game. A special game control means 90 of the slot machine comprises a specific game control means 111 for executing a specific game and a specific introduction game control means 101 for executing a specific introduction game. The lottery probability of a specific game during a specific introduction game can be changed.
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