The game looks pretty good, but it's difficult to get started. It's not at all obvious (or mentioned on the game page) that you move the camera with the keyboard and not the mouse. The mouse wheel zoom seems to be inverted and takes a lot of turns to get up close to your good looking assets.
I also miss some feedback (and a cool explosion and/or sound effect, but, hey, it's a jam prototype) when I kill one of these bad guys. I would very much like to see the amount of money it gets me without having to look away to the top right and do the calculation myself and missing some of the action.