Complete Monster: In life, Freddy Krueger was a child molester working as a gardener at a preschool. In death, he returned to kill all those who attended the preschool. He punctures one of his victims through the heart, then taunts him on the fact that his brain will keep going seven minutes after his heart stops beating. He keeps Nancy alive solely so she can remember him molesting her — before he tries to rape and kill her.
Ensemble Darkhorse: Many critics and viewers gave Katie Cassidy props for her performance as Kris; some even wished the film had made her the Final Girl rather than the decoy.
There's an interesting parallel between Marcus Yeon's final vidlog and this viral clip.
The credits theme, "All I Have To Do Is Dream", was one of the covered songs on Freddy's Greatest Hits novelty album.
Older Than They Think: A lot of reviewers and people who watched the movie praised the introduction of micro-naps to the series as a clever invention. They were actually introduced in Freddy vs. Jason, in which Lori's father briefly morphs into Freddy in broad daylight when she's sleep-deprived.
Arguably present in the original, which would explain the more confusing moments of the film, such as the end where Nancy walks through the door of her mother's bedroom and ends up outside, while seemingly awake.
The Scrappy: Nancy Holbrook, often cited as one of the worst final girls of all time. Doubles as Replacement Scrappy, since Nancy Thompson in the original movie was loved by fans for being proactive in standing up to Freddy, a trait which her successors carried into the sequels. New Nancy, in contrast, is a reactive character. Rooney Mara's later comments about the lack of enthusiasm she had for the role didn't help either.
So Okay, It's Average: Critics approved of Jackie Earle Haley's performance as Freddy and the research put into the science of sleep. However, they regarded the rest of the film as another failed attempt to recapture past glories.
Squick: Damn near everything to do with Freddy qualifies for this trope. Even before he was burned, his interactions with the children are unbelievably uncomfortable to watch, especially if you actually allow yourself to picture him hurting the kids.