My favourite anime

Sword Art Online or SAO is my favoourite Anime at the moment, I saw it this weekend and It's amazing. It's abaut a japanese child that goes inside the game which is a virtual game. You can't go out and if you die in the game you die in real life, for going out you have to complete the game which has 100 lvl with a boss in each one. In the game he meets a girl, her name is Asuna and they fall in love. They go to complete the game with 40 persons. The final boss was the captain of the team which Kirito the main character had to win him. He won and they finally achieved to go out.