This is, without a doubt, the very best superhero videogame I have played. While pretty much the entire game is one Last Supper away from being the messiah of videogames, I would like to take the time out to highlight some of the better parts, and even the very, very, niggling faults.
I'm applauding the atmosphere and setting before anything because that's what bring the whole thing together. Nothing is better than losing yourself in a creepy, horrific insane asylum then seeing nods to lesser known Batman rouges (like everyone's favorite Calendar Man!). Combat is excellent, as well as the stealth mechanics, both complement each other without breaking each other; a godsend. And the characters (especially the villains) are all very well characterized and made totally unique with their own unique sections of the game, especially Scarecrow.
Now for those faults. Fist and foremost: where the hell is Robin? He's not present in any shape, form, or mention and that really bugs. He's a big part of the Batman mythos, and I think if Batman has fuckin two character profiles and his goddamn parents have one, then Robin deserves one. The only theory I could think as to why Robin isn't even mentioned is if Batman were currently between Robins. Like say, after Dick Grayson threw his hissy fit and quit being Robin to go become Nightwing, or after the death of Jason Todd. That's understandable as to why Robin doesn't even constitute a mention in the game, but not why he doesn't deserve a character bio. Ugh.
Boy... that was a rant, eh? Let me wrap this up: too many of the boss fights are brick shithouse fights, or have WAAAAY too many grunts getting in the way.
And that's it. Go home.
Score: 9/10