Patent ID: 8388425

Claim:
A game system of a video game, comprising: a display device being configured to display first, second, and third objects; a controller having an acceleration sensor; and a game device being configured to execute a video game in which the first object displayed on the display device is moved based on an operational signal indicating acceleration and/or moving speed from the controller, the operational signal indicating acceleration detected by the acceleration sensor, the game device having an operation-target object control section being configured to display the second object to replace the first object when the acceleration and/or moving speed of the controller is within a predetermined range, the second object being different from the first object, the moving speed of the controller being computed based on the acceleration, the operation-target object control section being configured to detect whether or not the third object is displayed, the third object including a third contactable area, the operation-target object control section being configured to render the first object, which includes a first contactable area, to make contact with the third object at the first contactable area and the third contact area in the video game when the third object is displayed, the operation-target object control section being configured to render the second object, which includes a second contactable area, to make contact with the third object at the second contactable area and the third contactable area in the video game when the third object is displayed, the first contactable area having a first size, the second contactable area having a second size, the first size being larger than the second size, the third contactable area being set while the third object is displayed, the third contactable area being a part, which is displayed, of the third object.