"You killed them... All of them. Even Sans, the judge."

you feel the room growing hotter

"He was my friend... Even though he never payed his tab. I guess your SOUL, shattering into the Void, will be payment enough."

You throw a glass of water at him

it evaporates almost instantly

"You're trying to beat me with water? Sorry, but I don't touch the stuff. And right now... with my burning rage I T C A N ' T T O U C H M E"

You now are beginning to understand why Sans mentioned Hell

CHECK