A game device includes an input position acquiring unit and a first game control unit. The input position acquiring unit acquires a position of an entry provided by a player to a touch panel, which can concurrently detect entries at multiple points. The first game control unit displays objects and a sequence in which the objects should be erased on a screen image, and, in case that a position of an entry acquired is at a position corresponding to a position where an object to be erased next is displayed, erases the object from the screen image. The first game control unit includes: a single tap input control unit that, when an input on one object is acknowledged, erases the object; and a multiple-graphic-symbol-tap input control unit that, when inputs on multiple objects are acknowledged concurrently, erases those objects.