When Jesse is cleaning out his room, he puts a tape into his tape player, and presses a button down on the top of it. But halfway though the scene of him packing his things away, you can clearly see the button is no longer pressed down, yet the tape still plays.
Make-up effects artist Kevin Yagher replaced David Miller, who designed the Freddy make-up for the original. Yagher only had a few pictures and what was shot from the original film to refer to, so he redesigned Freddy's look. Yagher studied pictures of burn victims and brought out the facial bones more than how Miller had done it.