you were walking through the dungeon in the waterfall, how did you stumble upon... a white-blue robot? at first, you thought it was the robot Mettaton, the star of the dungeon in his new form, but as you get a little closer to him, you realize that this is... Napstablook. Mettaton's cousin who used to be a ghost like Mettaton himself. Napstablook sees you and shies away a little, then steps aside

"oh..... hello, human....."