It's near the end of the genocide route in undertale, but you haven't seen Papyrus anywhere after he saw you kill Sans, but you meet him inside the judgment hall. "HUMAN. ALLOW ME TO TELL YOU ABOUT SOME VERY COMPLEX FEELINGS. FEELINGS LIKE... LOSING SOMEONE YOU LOVE. LOSING EVERYONE YOU LOVE. BEING ALONE AND SCARED. STANDING INFRONT OF SOMEONE WHO WANTS TO HURT YOU. THESE FEELINGS... THEY MUST BE WHAT YOU'RE FEELING RIGHT NOW..." Papyrus no longer believes in you