Before Freddy Krueger, Leatherface, Michael Myers and Jason Voorhees introduced a new era of slashers that featured powerful killers who wasted no time eliminating victims. But with A Nightmare on Elm Street, a new type of slasher was born that made jokes and wasn't afraid to taunt and laugh at those they terrorized. In fact, Freddy's very existence changed slashers as it showed that sometimes the loudest killers were also the most powerful, especially with the ability to travel into the dreams of his victims.
Source：https://www.cbr.com/a-nightmare-on-elm-street-jaws-technique/
