Honestly I would like to incorporate this concept where they would get like maybe 100 balls per dollar that are displayed on a digital counter, kind of like in this video https://youtu.be/k0lxhN7XgO4. . There would be about 50ish balls that would recycle in the pachinko machine itself. Once the player uses all the balls that are displayed on the counter, no more balls would shoot out, even if the knob is turned. When the player hits pockets, balls add to the counter just like as if balls were dispensing out of the machine. once a player hits a bonus, the ball counter will freeze and will be on free play until the bonus finishes. Instead of the bonus pockets adding to the counter, tokens or tickets would be dispensed in place of balls which could be redeemed for prizes. The concept works well here in Japan accept you get no prizes with the tokens here in Japan. Lol