BlackHole Sans (BH for short) is a Sans that can summon Black holes. He travels from AU to AU flipping his magic coin. If the coins lands on heads the coin will turn in to a miniature Black Hole that sucks up a minimum of a whole Snowdin size town. And at maximum a whole AU (And the characters). But if it lands on tails it lets some random Characters, Houses, or Items are let go (They don't have to be from the same AU. He can not flip it unless he has any ones permission from that AU. The reason people let him flip it is that they might want to save the people inside. He usually targets Frisks' to ask for permission because they always want to save people (With a 50 percent chance of a Black Hole).