1) **MOST IMPORTANT OF ALL!** Turning while running is too slow making it hard to dodge, escape and evade attacks, and to move round corners. 2) Rain and sometimes thunder and lightning would bring a lot more atmosphere to the game if it was occurred every now and then. It could even snow in December. 3) Night time should be darker, harder to see, and scarier so you worry about being out at night where enemies may be lurking. 4) Would be good to have some sort of futuristic sword as a weapon. 5) unlocking and gaining some form of extras when completing missions on hard mode if you don't already.