A black octopus sans who is fueled by negativity.

People like to make the joke they are Mr tentacle hentai
brother is a yellow positive cupcake
Who's your favorite sans?
yo, Nightmare Sans
by TheDarkPieceOfShit September 21, 2019
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A sans from the AU Dreamtale, he is the Guardian of negativity
Person 1 : who is your favorite sans
Person 2 : Nightmare sans
Person 1 : why
Person 2 : because it's nightmare sans
by Undertale_nerd.com June 24, 2021
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