EXCALIBUR 402-A Space Invaders Arcade. Blast three types of aliens into oblivion and then shoot down the mystery-value spaceship to rack up points. There is no need for a roll of quarters to enjoy this arcade classic. Plays just like the original. The color LCD screen will keep you engaged. It even has a mini arcade joystick to make it seem like a real arcade game. It also has authentic retro graphics.