Board Thread:General Discussion/@comment-29546017-20160809203518/@comment-27701762-20160809210320

BoltieXRektin wrote: If killing something beloved by someone grants you EXP,Well gonna kill all of the spaghetti made by Papyrus.

And also, ghosts cant take harm from any source, neither they are in a body or not. You are right that they can't take physical harm, but emotional and psychological harm are presumably fair game. So to clarify, when you "kill" Mettaton's robotic body, you are not inflicting physical pain upon the ghost, but you are inflicting emotional and/or psychological pain. And if EXP is "A way of quantifying the pain you have inflicted on others," then that emotional/psychological pain may be just as valid for determining your LV as physical pain.