In a meta, fourth-wall-breaking twist, Nick follows his hateworm, Walter, to the monster world and eventually meets his real-life creator, Nick Kroll . This confrontation forces Nick to realize that he is responsible for his own behavior and the monsters don't control him.
Some viewers on Reddit felt the season leaned into "drama for drama's sake" and that certain supporting characters, like the parents and Duke, were underutilized.
The meeting between animated Nick and the real Nick Kroll was praised for exploring character agency and breaking new ground for the series.