Move your spaceship with your mouse first( do not fully drag, as this will glitch the bullets), then press any key to fire. The aliens duplicate fast, so be careful. The spaceship may glitch and spawn in the bottom let corner, and I would appreciate a one Remixing to fix this. (P.S.: Your highest score is saved even when you die. Comment your highest score without dying!)
Thanks to @HACKINGTONS for the tutorial. (P.P.S.: It actually is kind of hard to beat this game, because you can accidentally bump into a falling bread and die. BE VERY CAREFUL!!!!!!)