Angry Bird is one of the most popular and most played game.As it is very simple and doesn't contain any complexity.The best thing about the game is that everyone can play this game from lower to upper ages.The game is simple and contains great graphics, complexity of the the game rises from level to level.Which makes it more interesting.Another thing which is great in the game is that it requires very less space in you phone.Ram required to play the game is also much less, so you won't fell any lags in the game.So overall it's a great gane to play.You must try it once at least.
