also on the voice thing, we all know kris is one of the most autism coded characters to ever exist, but i really do love everything that both routes of chapter four when taken in conjunction told us about kris, being nonverbal, and how that's not painted as a bad thing?
it's pretty common i've seen for silent protagonists to be headcanoned as nonverbal autistic, but i think this is the first time i've seen it be explicitly canon, and also have it be pretty intrinsic to the narrative?
and like no, kris isn't entirely nonverbal, they do speak occasionally. but deltarune in general, and particularly ch4, paints a very strong picture of someone who (at least when they have control over their own voice) does not use words as their primary method of communication
like you can start with quiet people piss me off, or the fact that music is such an important avenue of self expression for them (made all the worse when they're not in control). noelle in ch1 asks if kris is okay when the player asks her the same background/lore questions we can ask everyone, because kris talking this much pings immediately as wrong to her. then there's everything we know about kris as a kid, and how yeah they had a bit of a mean sense of humor, but also pranks and fucking with people was a very good way for them to get attention without having to talk at all
noelle's story of the ferris wheel if you listen to all her and susie's dialogue in dess' room sticks out to me for this, and i really do love that anecdote. noelle mentions she and kris were pushed into riding the ferris wheel together as kids, she didn't really want to be there. and kris didn't say anything the whole time, for the first half they were just looking out the window. but then they decided to jump up and down and shake the entire capsule, and that's when they turned to noelle and smiled. susie goes "is that good or bad?" in response to that story and noelle says she doesn't know, but it's one of the things that gets kris' attention! and whether you believe that they were doing it to freak noelle out or because they also thought this was dumb and wanted to make it more fun for both of them (noelle isn't sure which it was either), that is how they communicate!
and when they do use words. this is the bit that makes me most emotional - noelle in weird route describes kris' voice as deadpan and mumbly. they don't like being loud, they don't talk very often, and they really struggle with inflection. all things that are normally criticisms when directed at autistic people, they're stuff autism moms use to justify their "i know my real child is in there somewhere" bullshit. but when noelle hears it again from soulless kris for the first time since the soul stuff started, she starts crying over how much she's missed hearing them talk. the soul (as we know from a variety of susie and noelle conversations) is louder, more charismatic, more confident and articulate, and it's not kris. so all those traits that are normally things autistic people get told to be more, are explicitly condemned by the narrative
and that's what makes kris being largely nonverbal such an excellent additional dimension to their story. because everything the soul does, at least in the normal routes, pretty much aligns with how people are expected to behave? kris under our control has a great social life, has friends, is likeable, isn't weird and hard to understand. and a crueler person, the kind autistic people have to deal with far too often, would say "well it's good we gave them a voice, they're not using theirs anyway"
but that's what makes it evil! it doesn't matter if kris is the kind of autistic that everyone hates, if there are things about them that don't fit in with society but that they either can't or don't want to change. their life and their voice, as infrequently heard as it is, is still theirs. and they deserve the freedom to use it however they want to