Derivative overrated garbage that cynically stripmines better games and is frequently misrepresented as an underdog. It's just inferior to the true Arkham trilogy in every way - the environments are lifeless and poorly designed, the new gadgets are weird and arbitrary, making the game easier rather than better and the extra features are undercooked - unlike the other games, New Game Plus doesn't actually allow you to keep any of your unlocked equipment, making it largely pointless to play through it.

Ironically the one good thing I can say about this is that the story (which isn't the high point of most Arkham games) is decent.