In either case, the ball enters the playing field, which is populated by numerous brass pins, several small cups into which the player hopes the ball will fall (each catcher is barely the width of the ball), and a hole at the bottom into which the ball will fall if it does not enter a catcher. The ball bounces from pin to pin, both slowing the fall and making it travel laterally across the field. A ball that enters a catcher will trigger a payout, in which a number of balls are dropped into a tray at the front of the machine. Many games made since the 1960s feature "tulip" catchers, which have small flippers that open to expand the width of the catcher. Tulip catchers are controlled by the machine and may open and close randomly or in a pattern; an expert player might try to launch the ball with an impulse and timing to reach the catcher when the flippers are open.