Whenever you are a moveable player use the arrow keys and when you can shoot it is with space. When there is not a player all you do is click and type. □_□
This game is mostly for me to test out code, that is why it is so random and why you seem to be jumping in between games. It is a "demo" because it might never even be finished. I just keep adding things whenever so there might never really be an end unless you get a game over. □_□ (There are also a lot of bugs I need to fix.)