A communication line is connected between a client terminal apparatus 2 and a game server apparatus 3 via a network 1, and an Internet game system, which runs a pre-determined network game in a virtual space provided by the game server apparatus 3, adds blurring to objects other than the object of attention when a view point is moved in the virtual space. Accordingly, since the object of attention is clearly displayed with regard to other objects, it is possible to make the object of attention stand out even when view point moving is performed.