Nightmare (悪夢 Akumu?) is a location from Castlevania: Symphony of the Night, entered when Alucard uses a purple "fake" save room in the Underground Caverns. The area is host to a short cutscene and the boss battle with the Succubus, after which it cannot be re-entered. It is the only area of the Castle that has no equivalent area in the Reverse Castle. Instead, there is nothing in the fake save room but a helping of Peanuts.
Defeating the Succubus will place the Gold Ring in the fake save room upon Alucard's return, an item vital to getting the game's good endings.
|Enemy Data: Nightmare|
|Image||Name - Game|
|Female demon. Invades men's dreams.|| Strong: Dark|
| Guard: Life Vessel, Gold Ring|| Nightmare (Alucard only)|