Bank-A-Ball
'Bank-A-Ball' was the first pinball machine produced with flipper return lanes, which are wireforms that allow the ball to roll behind the slingshot and towards a waiting flipper. According to the book All About Pinball, Paradise and its add-a-ball version Pleasure Isle were the first games designed to have return lanes. However, Gottlieb rescheduled the production of Bank-A-Ball so that it could be released first.