In case you get really close to creating a combination (winning), the game gives you an option to activate more balls which are, of course, are charged additionally. The goal is to win one of the winning combinations listed in the game, and each of them brings different winnings. The numbers are drawn from 1 to 90 and will not be repeated in between your cards, making each card unique. Each card is separate and contains 15 numbers (in a 3 * 5). The game starts when you select one of (four) 4 cards which you want to play and then choose roles. Composed of two games in one it is no wonder it offers a very large range of gaming elements that increase the percentage of winning big, such as a bonus game, extra balls, and a jackpot option. When you add to the Book of Ra slot game elements of the traditional bingo game you get the Book of Ra Bingo version, a very unusual yet no less interesting version of the game.
