Free To Play Game. Liberate the earth through defeating all the alien invaders Bosses and passing all the battles. this is a classic space shooting sci-fi retro style game so be expecting a real challenge ! fight your way through, by acquiring special abilities from each Boss and upgrade them from the store, while advancing levels are going to be more difficult so don't give up ! Title Menu sound track credit: Tomasz Kucza / magory.net/music