| 摘要 |
<P>PROBLEM TO BE SOLVED: To variously add games, in a slot machine that adds specific games during specific game state. <P>SOLUTION: An addition lottery means, when conditions for an addition lottery are fulfilled, performs a first addition lottery with a winning probability set by a winning probability setting means. The addition lottery means, when a player wins the n-th (n≥1) addition lottery, performs the "n+1"-th addition lottery, in the next game of a game in which the n-th addition lottery is performed, with a winning probability set by the winning probability setting means. As a result, until the addition lottery results in non-winning, performance of the addition lottery can be executed over a plurality of games. The slot machine includes a game adding means that adds a unit addition value set by a unit addition value setting means to the specific games, every time the addition lottery means wins the lottery. <P>COPYRIGHT: (C)2013,JPO&INPIT |
