Let's Talk About The "Momo Challenge"

This has become a viral story, but there's also a lot of misinformation being spread with it. There is some truth behind the momo challenge, but a lot of what is being reported on is based on things that don't necessarily prove their source or validity.
 Articles referenced:
 https://heavy.com/news/2019/02/momo-c...
https://www.snopes.com/news/2019/02/2...
https://kywnewsradio.radio.com/articl...
 https://www.dailydot.com/upstream/mom...