Protect earth by fighting other alien invaders. Help people from earth to live in peace. You have a single chance to move from over 6 waves. Beat em' up and save the earth. space shooter,classic shooter,alien shooter,2D shooter,shooting game,space shooting,Earth defense,space battle,mobile shooter,PC shooter,space adventure,save the earth,beat em up,alien invasion,spaceship,shooting,space,classic,shooting game,2D game