In Railroad rampage you place as a sheriff trying to stop a bunch of wanted criminals from robbing a train. To do this you will need to press A and D to move yourself left or right. Hit A or D twice to run in that direction. If you want to crouch to avoid fire press the S button. Press the S button twice to jump down from high areas and to perform a simple jump just press W. To shoot your weapon click your left mouse key. If you are close to an enemy you can use the same thing to either punch or kick them. If you want to perform a sliding motion press J or S plus the K button.