Gaming machine

A gaming machine comprising:

• a symbol display region in which a plurality of cell columns are arranged, wherein a plurality of cells, each of which serves as a symbol stop position, are continuously disposed and displayed on each of the cell columns, and wherein a symbol column, in which plural kinds of symbols are continuously disposed in a predetermined alignment order, is displayed on each of the cell columns of the symbol display region in such a manner that at least one of the symbols corresponds to one of the cells;
• a symbol movement control unit that makes each symbol column move along each cell column at a predetermined game opportunity in such a manner that a symbol to be displayed on each cell is changed in turn according to the alignment order of the symbols in each symbol column, and then makes each symbol column stop;
• a prize winning determination unit that determines whether or not a combination of the symbols stopped in a cell group of a determination target satisfies a prize winning condition;
• and
• a dividend generation unit that generates a dividend to a player according to the combination when the combination satisfies the prize winning condition,
• wherein the symbol movement control unit further comprises;
• a symbol check unit that determines whether or not a symbol reaching a filtering position, which is set on the cell column, is a specific symbol, and
• a specific symbol control unit that generates a specific change in the specific symbol while the symbol column is moving and symbols other than the specific symbol are passing through the filtering position without change, said specific change being different from a change to be generated according to the alignment order in respect to the specific symbol displayed in the symbol display region, when the symbol reaching the filtering position is determined as the specific symbol.