Themes Action Science fiction Perspectives Side view Game modes Single player Tags ALIEN INVASION ALIENS CGA GRAPHICS COVER SYSTEM DEATH DESTRUCTIBLE ENVIRONMENT DIFFICULTY LEVEL EXPLOSION GOOD VS EVIL HIGH SCORE INSTANT KILL LINEAR GAMEPLAY NAMELESS LOCATION NO DIALOGUE ONE-MAN ARMY PIXEL ART SAVING THE WORLD SHOOT 'EM UP SINGLE-SCREEN LEVEL SPACE BATTLE SPACE INVADERS CLONE SPACESHIP UFO Videos Gameplay Video
