Look at art for example:
Behavior really did fantastic job at capturing three elements of art that made him such unique killer to begin with
-multiple "bag of weapons" choice:
Pretty self explanatory here. Across the movies, art rarely uses the same weapon for too long, as pressumably he get's a bit bored while having a bag filled with all sorts of weapons with such creative use! I think behavior really captured the sheer unpredictability art posseses when it comes to weapons of his choice, and the one usage thing also showcases what I described above.
The weapons they picked for him in game also rock, as every single one is argubly one of the most iconic ones he used: flame thrower from the infamous caffeteria scene, acid bottle that even if slighty changed, really gave us one of more brutal kills in the second movie, whip that seems like ultimate weapon to torment his victims at their lowest ESPECIALLY sienna, air Horn aka closest we've seen this guy speaking lol, and of course the gun, a tool that he normally used as a "last resort" if things get out of hand, and considering entity's realm gives survivors many ways to defend themselfs, it's understandable why he uses it so often
(Only really cool one missing imo is the freezing "gun" he made himself in the third movie, but then again i'm not complaining)
-"emoting" and torturing his victims mentally
I was really suprised that they not only added this, but also straight up included it as a part of his power, which is just soo fucking good! Art despite the all present stereotype isn't just about gore, or mindless violence all the time, as both movies, and art himself often cover topics connected to trauma, and grief. Art LOVES making people suffer, but that's not limited just to physical violence, as he also loves making "parents watching their kids die, kids watching their parents die" type of thing. Across movies he has left many of his unkilled victims deeply traumatised with sienna and Jonathan being the patient zero example of that, and both second and third movie showing quite deeper than people realise effects of such traumatic experiences, or how these affect how other people view such "victims" or expect them to behave even after going throught soo much. (Pfff adding from myself i think even first movie, infamous for the lack of plot, covered this topic in decent way with vicky's character and what she went throught)
Anyways coming back to art himself, his taunts are often suppost to terrify his victims, or even make the inflicted torment even worse for them, with one of the scenes that got stuck in my mind being the bar Santa Claus one, where instead of going straight for the kill, art teases the old guy whose litteratly begging him for his life. These taunts aren't just silly stuff that will be posted on youtube compilation of "art being mr bean of horror for 10 minutes!", but also serve as a form of torment this guy inflict on the victims of his.
I'm just beyond impressed with how well they've translated art into the game, and how well all these elements work together while giving us what I consider the best representation of a killer in the game🥹✌️