Talk:Fawful vs Sans/@comment-26194911-20160513124640/@comment-28444460-20160513203800

I think it's more for dramatic effect rather than 'Gameplay mechanics'. Sans is the final boss of the Genocide Run, and the hardest boss in the game. People just would not be satisfied if he simply instantly turned to dust.

Monsters can survive after taking a fatal hit, though. As shown by Toriel, Papyrus and Undyne. And I guess Mettaton, although since he is a robot with a soul, might be a bit different for him.