The Nightmare is portrayed as a chaotic version of the Dark Soul, and forms into sinister details of the character's feelings.
The Nightmare can transform into several of details what he or she wants to be to change the character.
- In the fan reboot movie, the first twelve Nightmares are portayed as the twelve Zodiac symbols.
- The first twelve Nightmares share similarities to the trolls' ancestors, as they are alike to their symbols.
- The trolls' ancestors are adult trolls; however, the Nightmares are shown as humans eariler.
- The ancestors' names are changes for the Nightmare: Neophyte Redglare to The Blindness, and Marquise Mindfang to The Araña.