The game mechanics are simple, but work well enough. I appreciate that the ennemies try a bit to dodge bullets, even if their behavior is quite basic. At some points though, the game starts to lag a lot, as there are way too muchy enemies loaded! Also, some weapons lack feed-back. The first one I picked were shooting at a very slow rate, I couldn't even see the bullets. It doesn't really give great sensation. I much prefered the ones that fired frequently, it had more visible "impact". Still, nice job overall! :)