By making a game with greater richness in its feeling of realism, the level of (player) interest is increased. A game apparatus according to the present invention is equipped with image display means which displays on the screen of monitor a 3-dimensional game field image which includes enemy characters and display means for enlarged images which enlarges the image of the small area corresponding to the part of above-indicated image at which above-indicated model gun is pointed and displays it on liquid crystal unit of scope which is built onto model gun.