To improve game amusements in a game machine for starting a big winning game through two-stage drawing.
A first game including a normal symbol game in a low probability state is advanced, a second game including a special symbol game in the low probability state is advanced with the entry of a game ball to a start port to be opened only by winning in the first game as a trigger, and a probability variable game including the normal symbol game in a high probability state and the special symbol game in the high probability state is advanced through a big winning game by winning in the second game. By the establishment of a probability variable game end condition, a special game including the normal symbol game in the high probability state and the special symbol game in the low probability state is started. In a first special game, the special symbols can be variably displayed for two or more times while the start port is opened once. In a second special game, the special symbols are variably displayed only once while the start port is opened once.
YAMADA TOMOYA
SHINOMIYA HISATAKA
KODAMA TATSUYA
| JP2009072408A | 2009-04-09 | |||
| JP2007159688A | 2007-06-28 | |||
| JP2005270431A | 2005-10-06 | |||
| JP2008284180A | 2008-11-27 |
Takahiro Miura
Fumihiro Mizuno
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