The best game ever made.
The game excels due to Bossfights, Catwoman, Harley Quinn, all characters in fact, atmosphere, freedom, sidequests, gadgets, streetfights, music, story, soundeffects, animations och graphics.
It's the kind of game where after having played it through twice on hard and spent significant time in other modes I sit back and get the full picture and am simply amazed at how perfect this game is.
I believe this game is the best game ever made followed by Company of Heroes and the first Silent Hill.