I liked the voice over, quite enjoyed the dry humor and the obvious reference to a certain franchise and how you tie it into the theme.
I find that being able to be hit by your own projectiles can be quite jarring, like if I move forward while firing it will easily hit myself, but I could deal with that.
Maybe if there was some visual indication that enemies are being hit would be great, because right now the projectile simply disappears into enemies.
I just noticed there isn't really music in this game? I have nothing much to say about the sound effects.
The graphics are alright, reminiscent of good old online flash games I used to play, though of course they're nothing to write home about.