Why are Sans and Papyrus naked

I hate the way this comes up even if you have no friends

What happened here (Wrong answers only)

The Statue

Alone in the world is a little CatDog

(I'm not sorry)

and the stage

What would you do if you had to defend yourself against him

No context

Ramiz & Friends: Part II Menu Preview

https://youtu.be/DGMWzwSTjow

Five Nights at Noob's

Fan-Game or original?