This is a description from a friend of mine at work who is trying to remember the name of this pinball game so she can try to find it for purchase.
"I played this game in the early 70's and it was an older machine then. (Other games around at that time, OuterSpace/Orbit, Zodiac)
When you started off, you had to pull the "plunger" back an exact amount so that the ball would go up to the top and then reverse direction around some metal rails to score 7000 points (not sure the amount is right, but it was something like that).
There was a capture hole on each side of the play field where it would capture up to 2 balls, one on each side. Then when you did something else, I can't remember what, it would release the 2 balls in addition to the one that was already in play. I think it was the only multi-ball game that I can remember in that era.
It had a red rubber disk in the center that would spin and disrupt the path of the ball. I don't think it was spinning during the entire game, but I'm not sure. I think the flippers also opened & closed when you hit a mushroom."