I like this types of games I used to play on old button phones. You did great for a first touch of Godot, make more games to get more experience! Goodluck!

Would've appreciated an ammo counter or maybe a win message(i know that the UI nodes can be quite troubling initially)

Didn't quite fit the theme, some great practice with the engine(sometimes thats all a game jam is about) but i'd want to see a game thats more innovative. An idea of your own creation.

Moving the mouse rotates the character, and clicking fires bullets from the gun. Reloading even comes with an animation. The experience is well-designed, allowing for smooth and stress-free gameplay.
It would be even better if the game made it clearer when you lose or win.
So, the men in blue were actually allies? I didn’t realize and ended up shooting them by mistake—oops! 😆

Hey man congrats on completing your first game jam, I know completing your first game jam is tough I am proud that you completed it. On the gameplay objective wise possibility you could make it like a wave system where you have to go around killing enemies within a set time limit and maybe gain back some time, cause the current version I feel like it may have lack a goal or a reason for the player to go around killing up enemies.