2011's best-worthy sequel for a game!
Gameplay generally remains the same, with a notable additions of some impressive gadgets and the oh-so-cool moves. Animation very much lives up to its visuals that it would be very hard not to be amazed at this game. From batman's flying kick on a freefall body on midair, to robin's three-man counter simultaneously on the fly. Such combat mechanics never existed before this game and it really works so well it makes Ezio feels like an elephant to use.
The sound for me, did the best part in making the finishing touch on the world of batman. Just closing your eyes and listening to the subtle ambient touch with the wailing of sirens as it darts through the night really makes you wonder how did they made this work of art possible. Cats meow and dogs bark as you traverse through alleys, wind gushes more with respect to your altitude and character voices provides a convincing personality to their persona. From catwoman's seductive tone, two-face's ever disturbing two-person monologue, and even to the least important thugs who are filled with all kinds of emotions from fear, disgust, pride, and hunger.
If all things work together so good in a game, it would be this one. It would be such a pain seeing batman roll the credits however it would only suggest how valuable this game is. To all folks out there, this is just not for kids but to those who are mature enough to appreciate and to behold the significant work put into Arkham City.