Nightmare

Note: This article is about a video game character from Namco's Soul series. Therefore, he/she have nothing to do with Power Rangers.

Nightmare (ナイトメア Naitomea?) is a character in the Soul series of fighting games. The evil alter-ego of Siegfried Schtauffen (ジークフリート・シュタウフェン Jīkufurīto Shutaufen?), he later becomes an entity separated from Siegfried in Soulcalibur III. Nightmare first appeared in one of the possible endings for the Siegfried character in the game Soul Edge. In the sequel Soulcalibur, he was given a name and featured as a central character. Ever since then, Nightmare has been the main antagonist and owner of the Soul Edge, and thus the objective of most other characters in the story. Appearing in every game of the series, Nightmare has served as a recurring antagonist in contrast to the protagonist role played by Siegfried, as well as serving as Siegfried's archenemy.

Nightmare has appeared in all the sequels to Soulcalibur, visually different for each game. His fighting style was altered from Soulcalibur II to Soulcalibur III because Siegfried was now a distinct character in terms of both gameplay and story.