Cool concept!
I couldn't get past level 7 in my four times playing, but it still was a good experience.
I would add an indication to where I'm aiming because I kept shooting a bit to the side and missing.
Now that I think about it, the punishment for missing is really high. Maybe tweeking the cooldown when you shoot static object vs shooting the (also static object but also..) enemies will make it less punishing when you miss your target.
Overall I really liked the idea, thank you!