Thousands of asteroids are on a collision course with Earth, and you’re in charge of the Global Defense System. Use your missile command center to blast the asteroids before they wipe out humanity. Just deflect them enough to keep them from hitting the planet. After each level, you have the chance to upgrade your platform with more powerful weapons. Try to beat my high score of 815,350!. Note: See below game for instructions and tips.
Instructions: Use mouse to aim and fire. Upgrade your defense platforms, but be sure your upgrades are worthwhile. In general try to shoot just below the asteroids as they come in. Some of the higher-level missiles will detonate at the spot where you’re aiming, then release a burst of anti-asteroid shrapnel. If the asteroids get past you, you’ve still got a slight chance of destroying them before they strike the planet.