please dont remove current features
everyone is saying change upgrades and change costs and change everything pretty much, but its fun making the upgrades dont do as much as you think because that makes it hard and i like that
P.S. please make so if you click X out windowkill to stop playing please make a are you sure pop up before it closes because one time i was playing and the smiley boss we tryed to click x on him like normal but we clicked X on windowkill on accident :( so please make so if you click X out windowkill to stop playing please make a are you sure pop up
also please make a description of what the perks do if you hover over them, just another idea