| 摘要 |
PROBLEM TO BE SOLVED: To enhance a player's willingness to play and feeling of expectation by carrying out novel rendering and also to carry out rendering intelligible to the player. SOLUTION: The game machine includes a start information deriving means for deriving start information when a game ball enters a start area; a propriety determining means for determining propriety based on the start information; and a control state shifting means for shifting a control state from a first control state in which the degree of advantage to the player is a first degree of advantage, into a second control state in which the degree of advantage is higher than the first degree of advantage by opening a variable prize port by the predetermined number of times to allow the game ball to make a prize winning entry into the variable prize port when the propriety determined result by the propriety determining means is a specific propriety determined result. The control state shifting means shifts the control state from the other control state into the first control state when a symbol variation stop display by a symbol display means is made a second number of times after the control state is shifted from the second control state into the other control state. COPYRIGHT: (C)2011,JPO&INPIT
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