Each bubble carries a single alphabet. You must form as many words from these alphabets. A valid word formed causes the bubbles to sink some distance, depending on the length of the word formed. The game ends when the bubbles reach the red line near the surface. Thanks to all users who have written in with their suggestions over the years! Based on these, this version incorporates loads of new features: 1) An all new 7 letter mode 2) New improved graphics and User Experience 3) Game Center login is no longer necessary. You can play without signing in, and your scores are automatically stored and submitted to Game Center when you choose to login 4) The Solve button no longer ends the game by default. It will end the game only if you fail to guess the longest word of the round 5) Bonus points are awarded for guessing all the words in a round 6) Reduced bubble speed, thereby increasing the time available for game play.