#2 The Fiend's identity explained: More complex than previously imagined
There was a very important quote from the latest episode of Firefly Fun House which almost broke the fourth wall and gave away the entire mystery behind these vignettes:
"You know, our minds, they're just like gardens. And all yours needs is a little bit of water, a little bit of sunshine, and it'll make your ideas grow."
This is what Bray Wyatt expresses while looking straight into the camera. But at this point, if you haven't figured it out already, then let me explain: The Firefly Fun House version of Bray Wyatt is NOT the real Bray Wyatt.
As a matter of fact, the children's TV Show facade put on by who we thought was Bray Wyatt all along is actually a part of 'The Fiend'.
Read the above-highlighted quote again.
You will notice that these lines are actually meant for the REAL Bray Wyatt, who is supposedly located inside an abandoned mental asylum. Perhaps the biggest twist from these segments is that the Firefly Fun House vignettes are actually directed towards the REAL Bray Wyatt (since it all takes place inside his head), and not us (the viewer).
The "Join Us" and "Let Me In" statements are essentially ploys set in motion by 'The Fiend' for Bray Wyatt to accept his darkest side and live with it. Therefore, both the "children's TV Show host" and the "masked monster" are part of Wyatt's most evil figment of imagination known as 'The Fiend'.
But what happens at the very end of the latest (and possibly the last) edition of Firefly Fun House?