There aren't many online bingo rules. However, players will need to mark off five numbers that sit next to one another either vertically, horizontally, or diagonally, to win bingo. Additionally, if you are playing in person, you must call out Bingo to claim that you have the winning board.
One of the best Bingo Blitz tips is to complete the daily quests to earn extra bonuses. When you earn the double XP booster make sure to play for the entire duration of that booster to wrack up more XP points.