The idea is good, but I don't think the final result was what you had expected.
Despite having an aiming circle, I felt like many of my shots weren't hitting the enemy. Also, enemies often appeared where I couldn't see them and killed me from behind, which is a bit frustrating.
Still, I'm keeping up with the project. I imagine you weren't able to finish it because of the short timeframe of the jam, but if you stick with it, I'm sure it'll turn out to be a great game.