| 摘要 |
PROBLEM TO BE SOLVED: To raise surprise in an operation when a pattern such as characters and pictures is displayed by switching, and to raise expectations for jackpot lottery. SOLUTION: A display control board arranged on the rear side of a game board 11 selects by lottery one of a plurality of images for sub-screen as the image to be displayed on the sub-screen 304. A door member 310 opens a second opening part 302 with the sub-screen 304 arranged therein by operating a chance button, so as to expose the sub-screen 304 to an outer part. The display control board changes the respective selection probabilities of the images for the sub-screen in a sub-screen display image lottery means, based on a main screen image selection result. Consequently, the surprise in the operation when the pattern such as the characters and pictures is displayed by exchanging is raised and also the expectations for the jackpot lottery is also raised. Thus, a player is prevented from having a sense of fatigue. COPYRIGHT: (C)2008,JPO&INPIT |
