The levels get harder as you go, you need to fire your weapon (space) to destroy all ghosts. You can move up and down if you want but it is not necessary (up and down arrows) Be careful because if your lives or ammo gets down to zero then you will lose (if this happens to you just hit the flag to get back to menu) IF YOU DON'T WANT LAG THEN DON'T RAPID FIRE. you may choose any level at any time. GOOD LUCK AND HAVE FUN!
I used ideas from a pervious project of mine GOALS OF THE GAME survive the apocalypse kill all ghosts beat all levels
