Great game, very addicting. I really like that you can take control of some of the weapons and manually aim them. I can see that a lot of people would want it to be more of an idle nature but I think being able to do changes in real time that effects the outcome of the battle is what sets it a part. I hope you add more challenging monsters like the skull, because that one made me re-think some of my strategies.
On I side note I did feel that rotating the knobs was a bit difficult, especially when I used the target point. Maybe make them a bit bigger?