This is also apparently a callback to the original Herobrine sighting, as the background/setting is the same. The chicken in the original might be the one Chosen interacts a bit before.

Well that’s interesting! And… how he just… disappeared somehow… creepy.

Yeah! I wonder what Mr. 'Brine was doing there, and how he felt about TDL's and TCO's presence.

Unrelated but hehe Pac-Man chosen

TCO: I can rip my face off and close it again.

Yellow: Hey! Me too!

And so, the two became best friends. Best friends...who were both captured by victim.