I remember it well (enough). I spent a great deal of time and money in the game room area. Didn't bowl there much or at all. Just hung out in the game room part after skating. I actually think it was one floor up from where you describe. Where some offices are now. I worked in the Ice Rink (Ice guard/bathroom attendant/rental counter/Zamboni driver) in the late 70s and early 80s but I thought it was gone by then. Before the bowling/game room area, the highlight of my visits (other than skating lessons) were the "Fun Shop" on the lower level of Galleria I where I would spend money on cheap magic tricks. The Post Office sits there now. At the cinema at the opposite end if Galleria I, I saw Jaws, Star Wars and had my first movie date with my now wife. Real embarrassing. Not knowing the difference I thought I was taking her to see Chariots of Fire when actually I took her to see Quest for Fire. Ugh! (literally)