Dark Invader uses a 5mw helium-neon gas laser (mfg. by Metrologic) and a spinning a front surface mirror (mounted on the gun) to create the laser beam 'scanning' effect. The alien space ships are actually heavy gage wires, bent into interesting shapes, and painted in fluorescent colors. The wires are spun under UV lamps, and the ships swirl and pulsate because of the stroboscopic effect.
To achieve the look of 'deep space', the player looks through a viewing port at a partially front-surfaced mirror, down into the body of the cabinet. A lot of forced perspective is used in the targeting matrix grid, and the targets.
Cabinet dimensions : 62in. high x 32in. wide x 46in. deep. Weight : 250 lbs.