This is kind of a theory. Mostly, it's based on when you kill Sans, he says "Papyrus, do you want anything?" because he is hallucinating. i think somehow Papyrus "came back", and found the player and Sans. Because Sans is dying, he doesn't remember Papyrus is dead, so if Papyrus came back or Sans hallucinated, he isn't like "Papyrus, weren't you dead?". it kind of hints at Papyrus coming back because when he dies he tells you he still believes in you, and usually hints like that mean something will stop him believing in you and something will happen. As you keep killing, Papyrus loses more belief, and has none for you when you kill Sans. The reason he doesn't start a battle for killing his brother like Sans did is that he knows he has weak attacks. Then he probably watches you continue, as you kill Asgore and Flowey. i don't know how Papyrus would come back, but he's a skeleton, and you cut his head off, how does that kill him? He doesn't even have muscles to move, so pulling his skull off should be harmless. And he talks for a minute while decapitated. He does disintegrate, but the interesting this is his soul doesn't crack in 2. So maybe it persisted because he still believed in you, he was determined. And maybe, if there is an "Undertale 2" or something, he will come back, and he will be as powerful as Sans.
While there are lots of fan made comics about that, it is unknown how will Papyrus actually react to Sans' death since that never happens in canon...
Meh, i have an idea, i've seen the fan ones. But they make him look really evil, but Sans looks the same as usual in battle, so i guess Papyrus would too.
Sans is THE JUDGE and chooses who’s good and who’s evil and he would have killed you in the beginning if he didn’t make the promis he tells you this in MTT’s restaurant, however because of his “relationship” with Gaster and the King sans could have been around long before the second to fall. Therefore sans could have killed the last 6 humans to fall. This is your answer Moons and Pancry if you read this
Well, yeah Papyrus' battle is WAY easier than Sans', but he is literally the only boss who can't, or more precisely doesn't want to kill you (even Toriel can if you run into her attacks). Undyne describes him as "Pretty freaking tough", but is too nice to actually hurt anyone. It is a mystery how would his battle go if he went on us full force... Also, monsters are made mostly of magic, that's how he can walk/talk/function...
As for "Papyrus do you want anything" speech, I think it is just symbolic because Sans knows you've finished him...
Toriel does not want to kill you because if you slow down or freeze the frame after you die and before the game over screen Toriel makes an oops face.
