you can cheat on this game if you place your ship out of the sight, so the enemy missiles cant hit you, cuz the enemymissiles get destroyed if it reaches _x = 0 but your ship is _x = -20 ^^
it was pretty easy cuz im programming c++ and i know the main basics in lot of other languages... This tutorial helped me REALLY it was GREAT. nothing left to say about it, you will understand it im sure there!
IF YOUR BACKGROUND DOES NOT MOVE GOTO THE LIBRARY CHOOSE YOUR BACKGROUND Rightclick->Properties and rename all"Backgrounds" to "bg" then rename also the class to :
class bg extends MovieClip
and the file name:
bg.as
hope it works