You can always access the "How To Play" section by entering a tournament and tapping the "Settings" button on the bottom middle, and you'll see a few "How to Play" slides.

Here's how it works:

• Tap called numbers matching on the board.
• Five called numbers in a horizontal, vertical or diagonal row on the board create a bingo. Four corners filled on the board also create a bingo.
• Once you get a Bingo, tap the "BINGO" button to score the bingo! Tap the "BINGO" button with more than one Bingo on the board for extra Multi-Bingo Points!
• The faster you tap matching called numbers, the more points you get!
• Use Boosters strategically! Each time you tap a matching called number, your booster bar will fill up according to your speed! 
  
  

  Bonus Star - Fill any square you want.

  Pick A Ball - Fill 1 of 4 squares chosen at random.

  Double Score - Double your score for the next 10 seconds of play.

  Bonus Time - Add 10 seconds to the clock