Who is Chainsaw Man Muscle Devil?

Where was Chainsaw Man Muscle Devil featured?

The Muscle Devil was featured in the Chainsaw Man Manga Chapter 2
Pages 10 to 16 in the Manga

What is the back story of the Muscle Devil?

He really has a short but memorable few scenes in Chapter 2
He basically tries to trick the girl into thinking he is a good Devil and once Denji shows up
The Muscle Devil transforms into his true identity

How does Denji Defeat the Muscle Devil?

Denji transforms into The Chainsaw Man and tells the Muscle Devil he is a low life and has no real
issue in killing him now

Chainsaw Man Episode 2: Why Was Muscle Devil Cut?

It seems now that Muscle Devil was cut from Chainsaw Man Anime.
It was due to time and pacing purposes we are sure, it does not seem to have an impact on the series is another reason it may have happened