Cool concept, much can be improved. Such as added sound effects to the menu and enemies and make the game longer. The biggest fault in this game is that to aquire the extra bullets that you have upgraded you HAVE to press R to manually reload, or else if you let the game autoreload for you the extra bullets will not show up. Also in the start of the round you will start with the original amount of bullets. Because of this, all you need to do in the last stage is to continously press the shoot button and have upgraded reload speed and power but not bullets.