Gold Ball as a nice spinner on the left. It really keeps things interesting as it has a dual function of racking up points per rotation, but it also moves the arrows in the center with each spin too one spot to the right. It ends up randomizing where it will stop like a wheel of fortune gameshow wheel. Sometimes it works in your favor, sometimes it just doesn't since you may just need to hit one more get the extra ball (Gold Ball) to pop up (if you're using the Bally Service Kit or Home ROM v12 which I am.)
You can't make it out well since it's a straight down look at things, but it's there on the left. I really need to retake that picture since I just put a few hours smoothing and polishing the field using Novus products this afternoon/early evening. Game moves like a bat out of hell now unlike before.