That was a really interesting idea, doing bullet hell as a sort of missile defense turret!
I had some slight problems with aiming, where things didn't always seem to get hit when the reticle was on top of them, but overall it went okay, and I managed to complete it after three attempts - it's very frantic! I assume the warp drive scene is the ending, at least, I saw that you said you didn't have time to implement the ending properly.
Weirdly enough, I had two tracks of music playing at the same time on my second attempt, and the Try Again button didn't work for me.
Overall, I liked the aesthetics, idea and gameplay!