75-ball bingo cards. Players use cards that feature five columns of five squares each, with every square containing a number (except the middle square, which is designated a "FREE" space). The columns are labeled "B" (numbers 1 15), "I" (numbers 16 30), "N" (numbers 31 45), "G" (numbers 46 60), and "O" (numbers 61 75).
Bingo slot machines, also known as bingo-style slot machines, are a type of casino game that is based on bingo games. They have become increasingly popular in casinos around the world, with many players enjoying the added excitement and thrill that comes from playing these fun games.