Good work for 1 person, 1 week, and your second game jam on itch.io!
I think the player's aim direction should be decoupled from the movement, it would make the controls feel a bit smoother than they are right now. Think of like a tank's turret moving independently. I think also an auto-reload on the gun and also a reload sound would help as an auditory queue.
Good work, continue to polish it after the game jam! Like the concept and fits well with the theme!