A skeleton person, one he's seen around before and one who once offered him cake. Two giant skulls. And a knife.

No one in the world would blame him for assuming someone has finally come for him, to punish him for his evil, and while he might agree he deserves that... he can't let the skeleton win. Nobody gets to see his dead body. He'll kill again to prevent that, won't he?

So immediately he rises into the air, floating a few feet above the floor, and ready for the presumed fight to begin.

"What's this?"