I love this game!
simple, somewhat challenging for extended play and most of all fun!
you should make a sequal with more weapons,guns,movement.etc and one thing i didnt like though was the heart rate i would be having a lot of fun then suddenly GAME OVER your heart rate went too high :(. i suggest if you make a sequal get rid of the freaking annoying heartrate!!!!!
so dumb unethical and simple
but i love it