Thanks for feedback! it was team of 5 people actually, we had composer joined us in the last days of jam, and he did great job in that time! :D
Camera position was changed in the end as it was better for visuals (we started with more isometric one) and probably it destroyed a gameplay a bit and we wanted to use mouse for camera move, but probably we should have more specific tutorial saying that you need to use middle mouse button (along with many things that weren't the obvious ones haha)