Very nice game! I enjoy a good top down shooter, so this was a lot of fun!
I have only two pieces of feedback:
1) It feels strange that the cursor moves with the player and then, like, resets when you move the cursor again. The cursor should definitely stay where it is, rather than being relative to the player. Potentially just an issue with the cursor node being parented to the player rather than being a sibling of the player, with a game manager as a shared parent, but I'd have to look into your code architecture to know for sure, heh.
2) The recharging time felt waaay too long. Finishing one of those idle sections probably should have refilled the entire clip, or only taken like a fifth of the time to get a bullet back. The amount of time I had to spend idling really killed the momentum and flow of the game.
But overall I really had a fun time playing your game, it was very enjoyable. Great work!