After astronomers predicted a meteor shower, the city was equipped with a powerful air defense system. Along the perimeter are installations that fire rockets and the day in Meteor Attack, when space began to bombard the Earth, came. Your task is to meet the falling stones as it should be. To do this, you must activate the shooting installations, firing rockets at each pebble. No one should be allowed to reach the surface. The speed of the fall of meteorites is high and although the atmosphere has partially reduced it, the destruction can still be huge, so destroy the stones before they fall in Meteor Attack.