Pro Pool originated in December with 800 units being fabricated. This add-a-ball machine was designed by Ed Krynski with artwork by Gordon Morison. Two replay versions of the game were also made: a two-player version called Big Shot and a four-player version called Hot Shot. Obviously the theme of this game is the game of pool. The playfield is symmetrical and the way to win extra balls is by completing the left and/or right drop target battery. Doing so will lift the left and/or right wow rollovers for this award. The drop targets reset once the sequences are completed. Of course, an operator-adjusted score is another way to score a couple of balls. Back in the ‘70s, multiple balls or replays could be achieved on the game. Today, one free game on a current solid-state game is the common win. Operators have made it harder to achieve free games today as free games yield no income and only result in down time for the machine to earn coins in the till.

This game by Gottlieb is a very challenging design. It was invented by Ed Krynski and artwork was drawn by Gordon Morrison. This game has 10 drop targets lined up the left side of the playfield. If one target is hit, one scores 500 points. If, however, you’re skillful enough to hit a blue and white target at the same time, 5,000 points are awarded. Completing the sequence 1-9 lights the special at the bottom left rollover as well as lights the drop targets to score a special if all the targets are dropped. The player had to be wary when trying to freeze the ball on the right flipper, as one could lose the ball up the right guide rail (which has an opening in it the size of a ball). This playfield design was used a few times by Gottlieb, as it was a successful design (games like Gottlieb 300, for example, a bowling themed game). Scoring games by core were another option.