Hi All, I have serial number 523610. I bought it for my wife a couple of years ago for a gift as she really loves pinball. Anyway, I need to know how the upper level comes off the lower level. I've replaced all of the bumper rubber bands and cleaned it, except under the upper level. The other day my wife let me know there is a part floating around in it. The part is a metal bar about 4" long and bent on both ends, but I have to get the upper level off to replace it. It is in great shape with only a couple of nicks otherwise. Any help from you knowledgeable guys would be greatly appreciated. Thanks Again.