Ganz!Papyrus

Papyrus (Rapirus, as the author calls it) He was accidentally badly injured by Sans, who destroyed half of his soul. He became more serious and constantly dissatisfied with something. Unfortunately, he lost the ability to spare and became a cold-blooded killer of people. As a child, he loved to train with Undyne. As an adult, he became the head of the Royal Guard and could fight on equal terms with Undyne.

He started wearing steel armor. He has orange combat gear. He's trying to get Sans and Undyne by destroying the doors to the Ruins, but he can't get there yet. Most likely, he does not suspect the existence of Toriel in the Ruins.