| 摘要 |
PROBLEM TO BE SOLVED: To achieve a further improvement in entertaining performance of a pachinko game machine by enhancing expectation for the generation of jackpot. SOLUTION: The pachinko game machine is designed to grant a player with special favors of raising the jackpot probability, facilitating the holding of starting conditions by extending the opening duration of a starting port until the variable display of patterns is accomplished specified times after the end of a jackpot processing when specified conditions are met. A pre-winning display and a super pre-winning display are added to a variable display mode of the patterns when the special favor is left very limited.
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