Patent ID: 8628402

Claim:
A game machine having a lottery region, the lottery region having a plurality of cells arranged in a plurality of cell columns, the cell columns defining a cell arrangement direction and defining a plurality of symbol stop positions, the cell columns being arranged in a direction crossing the cell arrangement direction, the lottery region having a plurality of symbol columns, each symbol column being associated with a corresponding cell column, each symbol column having a plurality of symbols arranged in the arrangement direction and a portion of the symbols of each symbol column is arranged to appear in the cells of the respective cell column when the symbol column is in a stopped position, the game machine providing a game opportunity in which each symbol column moves along each cell of the associated cell column and stops in the stopped position, the game machine further causing a special symbol column to appear in at least one of the cells when a predetermined bonus condition is met in the game opportunity, the special symbol column including at least one symbol, wherein the game machine comprises: a special symbol column lottery device that determines by lottery the at least one symbol on the special symbol column; a special symbol column movement control device that causes the special symbol column containing the at least one symbol determined by the special symbol column lottery device to appear in the lottery region and to move and stop the special symbol column so that the at least one symbol on the special symbol column is arranged in a position relative to one of the cells of the lottery region, the at least one symbol on the special symbol column being configured to change the symbol in at least one of the cells of the lottery region; and a prize winning determination device that determines whether a combination of the symbols arranged in a cell group of a determination target forms a prize winning pattern based on the at least one symbol on the special symbol column and the symbols in the cells of the lottery region, wherein the special symbol column movement control device moves the special symbol column along the cells until the special symbol column stops so that at least a direction crossing the arrangement direction of each symbol column is included as a movement direction of the special symbol column.