Arcade Cabinets are less magical than they seem. We associate them with feats of mystical transfer, of impossible travel, because they are close by when the magic occurs. But they're not doors; they are more like door frames. The guts are typically one of a few standardized boards tuned to whatever experience the owner has decided upon, hooked into a screen, and also wired to a plate where button holes of various configurations have been punched through. Because the meat of that plate is functionally invisible, like so much of the cab, the solder is often, uh... enthusiastic. Let's go with that. There are buckets inside to hold children's money until a slightly agitated veteran of the Vietnam War comes to wring them out. At least, that's what I remember.