Really Freddy in general in this reboot. His face is more frightening thanks to better effects and he lost a lot of the humor and campiness he picked up over the years. Also the fact he is portrayed as a child molester rather than a child murderer is somehow even more creepy.
This film adds the concept of "micronaps," times when, after being awake too long, your brain enters a brief REM-type state to try and rest itself. You can be walking around normally, and suddenly Freddy can get to you, because technically you're dreaming. Suddenly, unlike in the earlier films, it's not about "finding a way to deal with Freddy before we just can't stay awake any longer," it's about "finding a way to deal with Freddy because I could have a fatal micronap at any moment." It also helps to explain the blurred lines between reality and dreams present in the earlier films, especially the original.