Bingo Cards

The bingo card is the scoring heart of a Bingo Pinball machine: a grid of numbers — classically five by five — printed across the backglass, the upright glass panel in the machine’s head, each number matching one of the numbered Trap Holes on the playfield below. A ball resting in a hole lights its number, and three or more lit numbers in a row pays, the award climbing steeply with the length of the line — on the earliest machines, four in a row paid roughly four times what three did, and five in a row paid 100 replays.^[1]

Origins

The card arrived with Bright Lights (1951, Bally), where the play is at its most elemental: a coin buys a card, five balls go up the shooter, three in a line wins.^[2] Bright Lights carried six cards, each purchasable in turn for another nickel.^[3][4] United had actually reached the market first with A-B-C (1951), whose short roulette-tub playfield players rejected as too random; Bally’s long field of holes let a practiced shooter aim at the numbers a card needed, and by United’s third bingo its layout had been copied outright, becoming the pattern the whole genre followed.^[5][6]

Rearranging the card

The card is where the format’s invention played out. Through the 1950s and 1960s Bally’s designers kept finding new ways to let a player — for more coins — reshape a losing card into a paying one:^[7] rotating blocks of numbers with Magic Squares, shifting whole columns with Magic Lines, sliding a painted screen across stationary numbers with the Magic Screen, abandoning lines for color groups with Mystic Lines, and hanging small Super Cards beside the main card with payouts of their own.