The title should be self-explainatory. But um, you shoots everything that moves (fastly) with spacebar buttonmashing. And, you have a proton shield that destroys enemies that touches you. BUT: as soon as YOU shoots, the shield will disappear. But hold your fire for a second, and it will reappear. Every hit at the shield will weaken it temporarily, though. Aim for a high highscore! (my record is 1175)