A gaming machine that provides an operation unit, a display unit, and a control unit. The operation unit is configured to receive an operation of the player. The display unit is operably coupled to the operation unit and is configured to display a symbol display area. The symbol display area includes a plurality of cells arranged in a grid. The control unit is operably coupled to the operation unit and the display unit and being configured to initiate a game in response to player operation and to establish an outcome of the game. During the game, the control unit, in response to a trigger condition, is further configured to establish a set of replacement symbols and to divide the set of replacements symbols into two groups and to display the replacement groups using features or feature animations.