Space + invaders is a very good concept of a game, you have to play PVP mode or you can play space verses invaders, the game is player verses player and the game has arcady style graphics and ounds, it is a very fun game to play and I hope that you enjoy the game as much as I do. the game uses a and d and arrow keys left and right to move and the shoot buttons are designated in the title screen, and you must either protect earth from the other player or verse the other player directly to stop them Space Plus Invaders, PVP, Two-player, Space Combat, Arcade, Aliens, Earth Defense, Download, Mobile Game, Two Player Game, Space Battle, Alien Invasion, Action Game, Cosmic Warfare