: Spike discovers that a specific piece of a "gate stone" (the source of Wen's condition) can reverse the effect. After a tense showdown, Spike shoots Wen with a bullet tipped with this stone.

: Over decades, Wen has become cold and manipulative, losing his humanity and effectively becoming "the devil". He uses his childish appearance to lure people in before killing them or destroying their lives.

The title is a direct homage to the of the same name.

: Mick Jagger wrote the lyrics after reading Mikhail Bulgakov's novel The Master and Margarita , which depicts the devil arriving in Soviet Moscow.

In this episode, Spike Spiegel and Jet Black pursue a bounty that leads them to a mysterious, ageless child named .

: Both the song and the Cowboy Bebop episode explore the idea of looking at "evil" or "the devil" from a human perspective, often finding tragedy or exhaustion behind the malice. La HISTORIA detrás de: Sympathy For the Devil