Videogame is a simple arcade videogame. Videogame is a clone of Galaga, Space Invaders. But, it I not 100 percent clone, it is authors vision of such kind of games, creative vision. Game theme - exploration of space, retro computers in 80s. You control a spaceship. Move using LEFT and RIGHT and fire with rockets by SPACE. So, let`s return in 80s. Space invasion of aliens is begin. In space there is a war. You are a pilot of spaceship. And you fight in space to destroy the aliens.
Users manual – read the instruction, pilot! Also some points about videogame you can read from users manual. It is in Pdf format, colorful. Videogame is in retro style. So users manual is necessary.