Rollunders

An aerial switch consisting of a wireform — generally U-shaped — suspended inside a metal frame above the playfield. When the ball passes beneath and through the assembly, it pushes the wireform upward to close a switch and register a score. Rollunders add a vertical scoring element to the playfield without obstructing the ball’s horizontal path, and they reward speed and trajectory rather than precision aiming. They appeared on over 100 IPDB-cataloged machines, primarily during the Electromechanical era, and are closely related to the Spinning Targets that use a similar overhead mechanism.