>>713950057
One of the biggest things that trips up theorycrafters is "what does this idea actually do for the longer running plot?"
Example of Papyrus as the Knight, simply on points of interest, points against him being the Knight, and how it would fit into the longer running plot or what it would do for the game's themes, up to and including returning Undertale characters using abilities mostly like their Undertale selves in the dark world:
>When did he become the Knight?
>How is Kris familiar with him already? There is a large amount of both explicit and implied familiarity between Kris and the Knight
>Why is Papyrus's choice of armor sporting deer antlers?
>Why does Papyrus share many gestures and mannerisms with Kris?
>Why does Papyrus as the Knight have so many points in common with Amalgamate monsters and the Gaster-esque stigmata?
>Why is Papyrus using a sword and dark/star magic in lieu of bones?
>Why is Papyrus hiding his identity when the Shit Squad doesn't know him anyways as a newcomer to town?
>How does Papyrus tie into the mystery regarding Dess's disappearance, the bunker where Something Very Awful Happened, and Dess's closeness to both the Dreemurr and Holiday families?
tl;dr begging the question of "what does Papyrus as the Knight add to the story?"