As a space fighter pilot, you will have to defend a colony of earthlings from an alien invasion in the new exciting online game Scratch-Tyrian. In front of you on the screen you will see your ship, which, picking up speed, will fly at a certain altitude above the planet. Enemy ships will move towards you. When you approach them, you will have to open targeted fire from the onboard guns. By shooting accurately, you will shoot down enemy ships and receive points for this in the game Scratch-Tyrian. The enemy will also fire at you. You will have to deftly maneuver your ship out of the fire.