First to player always point toward mouse. For changing weapon use 1, 2, 3, 4 keys. For use weapon while pressing e key you need to click your mouse. For walking forward you need to press w key. Also for sprinting forward you need to press space key while pressing w key.For move backwards press s key. You can see stars in game. If you have more stars then there will be more police and maybe tanks and police cars. When you start you have 100 health. Police can change your healyt in a bad way. But health pickups can change your health in a good way. There is mission in game. Arrow is pointin where you need to go. In some missions there is no arrow in them you need to find that thing yourself or kill enemies who come to you. Also you can change gamemode by a weapon. In normal mode you play normal game. In creative mode you dont get your heath down, you can go over buildings and cars, and at right up you see a new thing. It shows what think is in your hand and if you click your mouse you put the thing what is in your hand to your mouse position.In cinematic mode you only see what is happening in game. Good bye and please like this game.