To make a one way mirror you need to make one side of the brush {blue and the other side just like glass and than make it a funk wall with fx amount set to 255. To make a mirror what you do is copy the room, Flip it over from a top view to the other side of the mirror and make the mirror a little clear so you can see threw it into the other room which looks like a reflection. I guess to make you see yourself in it, make a funck track train that looks like gordon and make it get triggered to move in front of the window when you stand in front of it with a trigger_multiple...