Interesting concept. The one thing that I would want added would be a guide (like a ghost image or something) to show you how large your laser will be on your next shot. I had fun though, good job :)
The laser was actually supposed to match the width of your cross hair, but it seems like they didn't scale properly after building the game.
Good catch though! Will definitely be a fix when I work on the game after the jam is over! Thanks for giving my game a shot!