DS!Nightmare would likely be that guy that collects dick-shaped cheetos, bite off one gummy bear's head and another gummy bear's body then stick 'em together, buys strange flavors of gummies in the shape of boobs (looks intensively at fos i know u wanna make and sell sum), constantly ask Error and Cross to play the Pocky game w/ him and play with figurines that look like people he knows n doing things like making them kiss.
He's the most mature guy you've ever seen I mean he also collects stolen memes because "they are the best."
