First, choose your spaceship, weapon and difficulty with the mouse, then click play. In the game, use W to accelerate your spaceship, D and A to steer right and left, and click to shoot towards the mouse pointer. If you go off the screen, you reappear on the other side. Enemies will spawn (shapes) with their health bar above them. The more sides they have, the more powerful they are and the more points you get from killing them. If they touch you, you lose health and they despawn. The aim of the game is to get as many points as you can before you die!
