Crossroads Devil
Some people do not need to be persuaded or deceived into entering a pact with a devil. Some people are so desperate (and short-sighted) that they will seek out a devil in order to sell their soul in exchange for help.
The crossroads devil does not need to conceal his/her identity or play games. They are ridiculously easy to summon and it is well known that they will grant any mortal a wish in exchange for their soul.