I hope my fellow Undertale fans appreciate this -

If you don't know Undertale and/or it's Alternate Universes, what are you still doing here? (Moonfur's not serious, I promise *She flashes her hands defensively* -Love, the co-author on Quotev)

Your writing prompt is:

Nightmare Sans and Betty (Glitchtale) run into each other while Nightmare is investigating a new source of negativity. What happens next? Do they team up to bring fear and terror to the multiverse? Or do they try to kill each other?

I think this is an intriguing idea.