Tetris is one of the most popular games on mobile phones. What started as a simple Russian computer puzzle game became the addiction of millions of players worldwide. We started with one of the greatest games of all time and added the features to make it the perfect game for your mobile phone. In addition to the classic Marathon mode, we have added two quick games, Ultra (how many lines can you clear in two minutes?) and Forty Line (How fast can you clear forty lines?) to fit the way people play games on phones.