I don't know why but this really gets to me, like, how did those scars get there? Was it from the battles that Frisk fought or was it from before the underground on the surface? Either way it's really unsettling.
This boss was scary at. How could a small child even withstand looking at this terrifying abomination. I even get scared by calling the boss a "terrifying abomination" because I think he's gonna read this and break the wall just to kill me ;