I recently picked up a players condition Tee'd Off. I had never played that game before. The game I picked up has (had) a concave window over the roulette wheel - obviously impacting how the ball rolls. I am assuming this was some sort of McGyver fix/replacement as I have never seen anything like this on any other games with a window to below the playfield. It functions and adds what I would consider a mini golf like hazard to the game. However, I have removed/replaced it with a flat plexiglass piece and the game plays better .