发明名称 Gaming machine and method involving a selectable bonus evaluation system
摘要 A coin-operated player operable entertainment machine has a main display device, such as rotatable symbol-bearing reels, which selects a combination of symbols at a win zone after a game-play stake has been credited. Some symbols are bonus symbols which can initiate a bonus feature if at predetermined win zone positions. The game-play stake can be changed by the player to change options for attaining the bonus feature. The arrangement may be such that an increase in stake value results in an increase in the number of predetermined positions which correspond to initiation of the bonus feature.
申请公布号 US7699698(B2) 申请公布日期 2010.04.20
申请号 US20040861084 申请日期 2004.06.03
申请人 IGT 发明人 RANDALL DOV LIAM
分类号 G07F17/34 主分类号 G07F17/34
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