Who Was The Devil that Appeared to Johnson

MEPHISTOPHELES?

I have been reading about the demons that appear to people in different circumstances for different things, and the one that stands out the most is Mephistopheles.
    Mephistopheles or Mephisto is a demon from Germanic folklore, originally appearing in the legend of Faust.
  In the Faust chapbooks (based on the historical Johann Georg Faust) The lord challenges Mephistopheles (the devil) that he cannot lead astray the Lords prized scholar, Dr. Faust.
Disappointed with the science of natural means, Faust tries and fails with magic to gain knowledge of nature and the universe, and becomes depressed and suicidal at his failed attempts.
 After being followed by a poodle, Mephistopheles appears to faust and offers him a contract: He will do Faust's bidding on earth, and Faust will do the same for him in hell.

The word Mephistopheles, may derive from the Hebrew word mephitz, meaning "distributor" and tophel chequer, the literal translation of which is "falsehood plasterer".
 It could also be a combination of three Greek words: "me" as a negation, "phos" meaning light, and "philis" meaning "loving" which would make it mean "not-light-loving", a possible parody on the latin "Lucifer" or "light-bearer".

https://www.youtube.com/watch?v=F5fhRQQmi8Y

^^^^A great link with a short clip from the 1926 film Faust, in which Faust summons Mephistopheles at a CROSSROADS....coinsidence?? I think not. 

ALSO JUST FOUND THIS, THIS IS A DEPICTION OF MEPHISTOPHELES FOR A THEATRE PRODUCTION, AND HE IS SHOWN PLAYING A GUITAR.. NICEE (the story goes with Robert Johnson that when the demon appeared to him, in the form of a black man, he took the guitar from Johnson, tuned it and gave him it back..)