I found the best way ever. I cruised through the game. Had no Damage on me. Upgrade damage to 18 (Max upgrade). Then start doing the Rate of Fire till its full. Forget about the speed. Then you win Easily.
Ahh. I have the message. The class 'MiniBoss' needs to be defined in a file whose relative path is 'MiniBoss.as'. On the Miniboss.as.
Its saying it about this line of code.
class MiniBoss extends MovieClip {
Oh sorry about the mix up. Its just that I thought Willy was someone else and not you. I'll look through your code and try to see why scores aren't showing. Will give you a shout for a fix when i figure it out. kk.
AAHHHHHHH!!! I was on the last level. Easily cruising through. I then red one of the comment that said if you drag an elevator while paused the weapons stop shooting. And they did. So I got screwed by hundreds of black blob like monsters in a random building that somehow has a never ending supply of monsters in it. AHHHHHHH!!
 "1st perspective game"){kind=icon}
 "Lag Test")
 "Bunny Charm")
 "Shootorial #7"){kind=icon}
 "The Not-So-Imposible Quiz")
 "YouKongregate")
 "Bee Maze")
 "DropSum v2")
 "Willy's Copter"){kind=icon}
 "Kjus1245's Fun Test")
 "The Next Floor")
 "SHIFT 4")
 "GeoSketch")