Patent US 6,902,483

A handheld electronic game device shaped as a toy gun with two handles and two triggers, and one or more built-in display screens. The device may be played as a stand-alone device, or played with an external game unit having a display screen. When played with an external unit, the handheld device and the external unit may be provided with an aiming relationship detection system to detect an aiming of the handheld device with respect the display screen of the external unit. In one example, the screen of the external unit displays a terrain or a scene seen by the player, and the built-in display of the handheld device simulates a view seen through a scope used on traditional guns. An additional display screen may be provided on the handheld device to simulate a radar scan or satellite image.