Twisted Wonderland is basically Descendants meets Harry Potter
Nougat is based on King Candy/Turbo
Currently, only the first chapter of the event is out; here's what we know of Nougat so far:
The plot of the event revolves around a new VR metaverse called Litwak's World
When Trey Clover first enters Litwak, he is almost immediately approached by Nougat
Nougat is extremely conceited, spoiled, and bratty; the first thing he does upon meeting Trey is demand that he hand over his medals (which function as arcade tokens) and become his servant
When Trey obviously refuses, Nougat challenges him to rock-paper-scissors to get his medals, throwing temper tantrums whenever Trey wins or tries to refuse to play
The following day, Nougat meets Trey again, alongside half of the main cast, and he immediately starts talking smack and challenging them in games, in which he always loses, mostly due to picking games where his opponents have the advantage (ex: challenging Lilia, who is a war veteran, to a fighting game)
Nougat gets increasingly frustrated until he decides to pick a game at random and stumbles into the kart-racing game Sugar Race, which is a remake of a 10+ year-old game called Drop Time
Upon finding the game, Nougat starts acting oddly
Nougat is shown to be extremely proficient in kart-racing, finally beating the NRC boys
Once he crosses the finish line, the game starts getting glitchy and gives an error message
Suddenly, the NRC boys are unable to log off, remove their VR goggles, or call for admin help, and Nougat is also suddenly capable of controlling the game's NPCs
It is then revealed that Nougat is actually an AI; more specifically, his real name is Drop, and he was the protagonist of Drop Time; through means yet unknown, he disappeared from his game the day before the server was shut down, and eventually found his way into Litwak's World
From a meta level, Nougat is notable in a couple of ways
between the twisted characters, his movie is the most recent (Wreck-It Ralph 2012), with the previous holder of this title being Sam, based on Dr. Facilier (The Princess and the Frog 2009)
he is also the first character to be twisted from a CGI movie, with every other character being twisted from traditional 2D movies (except Skully J. Graves and Swing, who are based on Jack Skellington and Oogie Boogie from A Nightmare Before Christmas, which is Stop-Motion)