Bonus-7

The Bonus-7, designed by Don Hooker and manufactured by Bally, is a bingo machine, a distinctive branch of the electro-mechanical coin-op family in which players shoot balls into a field of trap holes, trying to line up numbers on a bingo-style card displayed in the backglass. With 20 trap holes and features such as Mystic Lines, Twin Numbers, and Special Game, Bonus-7 offers the layered odds-and-features gameplay that made Bally's bingos famous.

One of the most intriguing aspects of the Bonus-7 is its purchasable interactivity. If the corresponding features are lit, the player can press buttons to rearrange the colored sections on the backglass card, before shooting the fourth ball, before shooting the fifth ball, or even after the fifth ball has been shot. This gives skilled and daring players real influence over their results, a hallmark of the bingo genre.

The design and art reflect the functional aesthetic of Bally's bingo line, with the backglass card display taking center stage rather than elaborate themed artwork. Carrying Bally model number 909, the Bonus-7 is an engaging example of the bingo machines that formed a major part of Bally's business alongside its flipper games.