Not bad...
with a few problems. There is lagging to deal with, even on low quality, and the turrets are useless. I couldn't get past level 35, because I would lag, and all of a sudden, I would fire off 4 shots, then not move. I use a fairly good computer, and still, I lag. Maybe it's time to upgrade my computer, I don't know. I don't see why you put turrets in, either, as there is no use for them. They don't stop people, they don't slow them down either.
-2 for lagging
-1 for bad turrets
-1 for reusing graphics. Don't get me wrong, I love the style, but it's not as if they're new. You used them 2 years ago in Regent.
It's a good game, Tom, I enjoyed it, but it's not up to your usual standard.