PEW! Yay more shooters! Game is pretty difficult! But got a strategy going. If you just click as fast as possible you can fly though it. Really liked the hand drawn 3D look that was really unique looking! Even the reticle was that hand drawn look. Sound FX were really funny, I think recording a few different pews and randomizing them would make it even better. Music fit well.
I think the raycasting felt a little short you didn't really know if you were hitting your target or not. So maybe a "tracer" coming from your finger to indicate your shot or a hit decal on your target to indicate you're scoring hits. More sound fx for the bad guys shooting would have been good too as well! Probably limit the frequency with which the "gun" shoots. would be good. You could make it as long as the sound fx plays for example. Again I was able to just click super fast or if I wanted make a macro to just click 1000's a time a second trivializing the game.
Well done. Enjoyed it! :)