In a game device (301) for showing a past operation history to a player in comparison with the current operation status, a first moving unit (303) moves a first object in a virtual space based on a moving instruction input received by an input receiving unit (302), an input history storage unit (304) stores the moving instruction input as input history information, a second moving unit (305) moves a second object in the virtual space based on input history information stored in the past, an assessment unit (306) assesses whether or not the first object and the second object are overlapping in the virtual space, and a display unit (307) displays the second object in a case where a non-overlapping state has been identified and stops the display of the second object in a case where an overlapping state has been identified.