Good Balls Bad Balls

Similar to the game Plinko that has appeared no numerous TV shows, a series of balls would roll down from the top of a board, bouncing off the multitude of pins below, seemingly taking a different path each time. The contestant would try and follow the ball down with the aim of rolling it along a guttering into the positive basket. Any balls that were missed would roll into the negative basket. When the positive basket contained four balls more than the negative, a counterweight system would release the crystal.