Aliens attack Free Aliens, but you have a chance to deal with them and for this you need to go through sixteen levels, removing all colorful tiles from the field. You can remove tiles in pairs and they should be on four sides. Press first on one, then on the other tile of the same color and they will be burned with laser rays. Your clicks will work as a sight. Consider the fact that the time for the destruction of blocks is limited, so act quickly and find paired blocks to get rid of them in Free Aliens.
