Okay, since I do Ghost Hunting as a sideline and somewhat of a hobby I also do a lot of research on stuff. Well....this comes from watching the movie "Ghost Rider". I have noticed that one of the names in the movie for portrayal of the Devil was Mephistopheles. SO...me being curious about it here is what I found on Wikipedia...

Mephistopheles
From Wikipedia, the free encyclopedia
For other uses, see Mephistopheles (disambiguation).

Mephistopheles flying over Wittenberg, in a lithograph by Eug?ne Delacroix.

Mephistophiles (also Mephistophilus, Mephistophilis, Mephostopheles, Mephisto and other variants) is a name given to a devil or demon in the Faust legend.

In the Faust legend

MEPHISTO_PHILES in the 1527 Praxis Magia Faustiana attributed to Faust.

The name is associated with the Faust legend of a scholar who sold his soul to the demon Mephistopheles for knowledge, based on the historical Johann Georg Faust. The name appears in the late 16th century Faust chapbooks. In the 1725 version which was read by Goethe, Mephostophiles is a devil in the form of a greyfriar summoned by Faust in a wood outside Wittenberg. The name Mephistophiles already appears in the 1527 Praxis Magia Faustiana, printed in Passau, alongside pseudo-Hebrew text. It is best explained as a purposedly obscure pseudo-Greek or pseudo-Hebrew formation of Renaissance magic.

From the chapbook, the name enters Faustian literature and is also used authors from Marlowe down to Goethe. In the 1616 edition of The Tragical History of Doctor Faustus, Mephostophiles became Mephistophilus.

Burton (1992, p. 61) speculates on Greek elements that may have played a part in the coining of the name, including Greek mē "not", phōs "light" and philos "lover", suggestin "not a lover of light" in parody of lucifer. Variations in mephost- may be due to attraction by Latin mephitis "pungent", and Goethe's Mephistopheles may due to Hebrew tophel "liar".

In a passage from Marlowe's Faustus, Mephostopheles says:

'Why this is hell, nor am I out of it.
Think'st thou that I, who saw the face of God, And tasted the eternal joys of heaven,
Am not tormented with ten thousand hells
In being deprived of everlasting bliss?'

Mephistopheles in later treatments of the Faust material frequently figures as a title character: in Meyer Lutz' Mephistopheles, or Faust and Marguerite (1855), Arrigo Boito's Mefistofele (1868), Klaus Mann's Mephisto, and Franz Liszt's Mephisto Waltzes.

Outside the Faust legend

In the 17th century, the name begins to lead an existence independent of the faust legend. Shakespeare mentions Mephistophilus in the "Merry Wives of Windsor (Act1, Sc1, line 64)."

Burton (1992, p. 61) finds "that the name is a purely modern invention of uncertain origins makes it an elegant symbol of the modern Devil with his many novel and diverse forms."

Mephistopheles is pretty popular in Polish folklore but as more of a comedic devil. He appers in Adam Mickiewicz ballad Pani Twardowska (from his Ballady i Romanse book) and in modern books such as Siewca wiatru or as a villian in Stowarzyszenie umarłych dusz


References
Burton, Jeffrey Russell, Mephistopheles: The Devil in the Modern World, Ithaca, NY: Cornell (1986); 1990 reprint: ISBN 978-0801497186