PS, a couple of bugs: on Firefox the screen turns blue shaded when you click it and can't unshade it, but it's fine on Chrome; twice the game froze (in Chrome) when the butcher, on the lower right of the display, died.
I had the Firefox issue as well; each click selects the game window. Double-clicking unselects it again - but this is more of a browser issue and not indicative of game issues. Unfortunately, I also had the game freeze on me randomly at the end of a round - the continue button simply never reappeared.