The Earth is in grave danger. Meteorites are falling onto the ground and the world needs you to help save it from danger. To prevent this, press the left mouse button to prevent the meteorites from falling down. If you can destroy smaller meteorites you will get bonus points. If you let any of the larger ones hit the ground it will be game over. You must continually keep the larger meteorites bouncing or risk losing the game completely. The smaller meteorites are a bit harder to hit so just be mindful of any of the larger meteorites to make sure they don't hit the ground.