0945837-A2 is referenced by 640 patents and cites 4 patents.

A bonus game for a slot machine operable in a basic mode and a bonus mode. The bonus game is entered upon the occurrence of a special start-bonus game outcome in the basic mode. In the bonus game, a player selects, one at a time, from an array of windows each associated with a bonus game outcome. Credits are awarded based upon which ones of the windows are selected. The bonus game ends upon selection of a window associated with an end-bonus outcome but otherwise continues, allowing the player to make further selections and accumulate further credits until encountering an end-bonus outcome. In one embodiment, a bonus game resource obtained in the basic game may be exercised in the bonus game to affect the bonus game outcome.; In one embodiment, for example, where the occurrence of an end-bonus outcome would otherwise end the bonus game, a player having a bonus game resource may exercise the bonus game resource upon encountering an end-bonus outcome to continue playing the bonus game.

Title
Bonus game for a gaming machine
Application Number
EP19990105568 19990318
Publication Number
0945837 (A2)
Application Date
March 18, 1999
Publication Date
September 29, 1999
Inventor
Delott Roger A
US
Wilson Jr Robert J
US
Gomez Benjamin T
US
Thomas Alfred
US
Assignee
Wms Gaming
US
IPC
G07F 17/32
G07F 17/32
G07F 17/32
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