The idea of not being able to move while you're shooting is really interesting, and I enjoyed the music too. I'm assuming this is your first game jam, so keep it up and keep trying, being able to say you've submitted anything at all is an accomplishment in and of itself, just keep messing around with Godot and making games and eventually you'll get better! In terms of feedback on the game itself, it would be nice if it automatically reset when you died instead of having to close and reopen the game (you can do get_tree().change_scene_to_file("res://YOUR_MAIN_SCENE") or get_tree().reload_current_scene() depending on your scene structure to do this). Game jams like this are great for messing around and learning because you don't have to worry about making your projects in a maintainable fashion (I've got all of ONE code comment in my submission, something you should NOT do for a long-term game). Whatever you do, keep at it and don't get discouraged! Keep at it!