ZeroRanger is a vertically scrolling 2D shoot'em up with heavy emphasis on shooting, dodging and... mystery? The forces of unknown alien menace GREEN ORANGE have begun their invasion. With the planet's main defense force swiftly taken down, only two secondary fighters remain against the complete defeat. Blast your way through the enemy forces and unleash your fighter's latent potential! Unlock new weapons and abilities as you hone your skills against the invaders! ... But even then, is this enough against the true power of your enemy? The final battle starts now... Source: The Publisher Website.