Honestly I know this is old and I only recently came across the series but I liked it. Honestly in my opinion my whole idea with the mix of videos was that William while in hell split his soul into and had one become a demon to torture himself and become stronger. The going psycho video to me was them picking apart his flaws and remembering what drove them to this and what they still want at this point.
So Mimic 1, Afton, Malware and Glitchtrap were stuck in the Help wanted game in this AU. When Tapegirl made the tapes was she aware there was multiple entities? Or was she only aware of malware?