City Smile is a lovely strategy based online game in which there are 18 distinct levels that offer exciting gaming experience that you just cannot resist. In each level of the game, you will have to help the yellow smiley share happiness and win friendship by infecting all the other faces on the play screen. You should look to complete each of the levels of the game in least possible time. The tutorial in the game is worth checking out for getting the hang of the game play. The game is fun and very entertaining.