If you know how a gun works then you're all set. BUT to pull back the slide you have to pull the trigger. So you can't pull it manually ____________________________________________ If you don't know how a gun works, like me, then: click trigger to fire, the little button to the left of the trigger to reload. Then click the trigger again. There's really only 2 buttons.
I made the gun myself by looking at an image of one on google. So I made all of the sprites. This took me around 2 hours to make. I'm planning on making an assault rifle version soon. :)