The rules of mobile bingo are quite similar to the classic live version. Mobile bingo is a lottery-style game and involves buying cards with a 5x5 layout containing random numbers. Players must match the numbers on their card with the numbers that are drawn from the caller. The first player to complete a specific pattern wins the game. The patterns are usually highlighted on the bingo card and vary from game to game. The game is played with a set of random numbers called "balls," typically ranging from 1 to 75. The caller selects each ball one at a time and calls out the number to all the players.