It is good, but sound is a bit lacking. Also the strategy ended up boiling down into "run around the edge and mash mouse button". It was annoying that the "shot value" maxed out at two but still lets you buy it. I got it to lv 5 but it was still giving me 2 a shot. Also I janked out of the stage with the boss, so I just infinitely shot the centre, because the enemies can't get me. Overall, good game, and well programmed for the most part. But fix the wallclipping.