What does «fantasmagórico» mean in Spanish?

Related to phantasmagoria (representation of ghosts or figures by means of optical illusion).
That it is or appears to be an illusion of the senses.

Examples of use in Spanish: "imágenes fantasmagóricas".
Relating to or resembling ghosts; ghostly.

Examples of use in Spanish: "se apareció en mi habitación un ente fantasmagórico".

"está tan delgada que su rostro luce fantasmagórico".
(Fantasmagórico) Latin American name for a well-known Japanese superhero, known in his language as Ōgon Bat and Phantoma in English. Created by the writer Takeo Nagamatsu in 1930. He is considered the first Japanese superhero and predates characters such as The Phantom (1936), Superman (1938) and Batman (1939).