Cover of Darkness. Save the world from invading aliens by lighting the skies with fireworks in this explosive action shooter. The sky darker and darker, the alien invader that first shown on the TV have spread across the sky to the village. The creature travel the universe to harvest evil and reached earth. Under the cover of the darkness. A hero comes forth to fight and prove the light of humankind. This game is one of the action shooting games. Enjoy and have fun in playing this free online game on Round Games.