| 摘要 |
PROBLEM TO BE SOLVED: To improve the interest of a slot machine by greatly varying the number of net increase of tokens without a game becoming monotonous with simple control. SOLUTION: A CPU initializes a first game mode of carrying out internal lottery in which prize winning probability of a bonus combination is set to a predetermined value, and when the bonus combination is won by the internal lottery in a game in the first game mode and its bonus flag is held to the next game onward, the CPU sets a second game mode of carrying out internal lottery in which probability to win the bonus combination is zero and probability to lose is set to a predetermined value larger than the second game mode. When the predetermined number of games are carried out, an RT (replay time) game mode is terminated to shift to the first and second game modes, respectively. COPYRIGHT: (C)2010,JPO&INPIT |
