An anime for this show would be... odd. It'd probably be some Haruhi crap.
But then again, probably not. It resets, you don't actually travel through time itself.
Anyways, it'd definitely be one of the longer shows if they go through every potential thing and then stuff not in the game itself. It'd be pretty unlikely they'd do /everything/, though, but probably just the major stuff.
Like, let's see... Chara's slow corruption over Frisk, the potential of several resets after Frisk dies or does something that she regrets which may lead to more corruption... I can't see Papyrus being killed at all in an anime unless Chara takes control and forces a reset, to which the plot line would fall to Sans to force Chara out, or someone else.
But then again, the show could be split into two separate runs and then one more where they meet in the middle to decide who has more determination. Which I feel would be Frisk. She could refuse death, after all. Something Chara wouldn't, and doesn't, care about since she has control of the resets.
ok look im never the type to rag on a fandom for being too huge for whatever it is. enjoy what your enjoy and express it how you feel appropriate. this being said....HOLY **** theres no much of it everywhere i go its mentioned at the very least. i know theres no stopping it but is the game, the actual game, really so good that there must be a billions comics, fanart, and for the love of god i hope theres none but im sure there is, porn. like its a neat game with some gimmicky mechanics and the story is unique but the ******* puns and **** are just getting cringy. im just complaining like a little bitch i know, this type of content is just inescapable at this point. carry on
this wouldnt work as a show for many reasons imo
they would have to find a way to be able to build a character off of frisk while keeping him/her gender neutral, for one thing