Leap Frog

Leap Frog, manufactured by Scientific Machine Corporation of Brooklyn, New York in May 1936, is an early electro-mechanical (EM) pinball machine from a company that operated from 1932 to 1950. As a single-player game, it represents the kind of coin-operated amusement common in the mid-1930s.

Little specific documentation survives about Leap Frog's gameplay, rules, or scoring objectives. As an EM machine of this period, it would have used electromagnets and mechanical relays to control play, predating the invention of the flipper by more than a decade.

Details about Leap Frog's artwork and theme are similarly scarce, consistent with many games from this early, experimental period of pinball history. It stands as a representative example of Scientific Machine Corporation's output during the company's long run as a manufacturer.