+The Mimikyu Obsessed Weirdo at least he's good mannered :D Most people wouldn't even apologize for being an a__s_ole. So a lot of us should actually learn from Papyrus's attitude. :P
Undyne:. First, we need to evolve him into ghost rider. Papyrus: That's..... THE COOLEST THING EVER! LET'S DO IT! Undyne: You mean "hottest" *insert crazed undyne smile here* *Moments later from outside the house* Sans: What's up, kiddo? Papyrus:. *inside* Bad idea, BAD IDEA! Undyne: Stop running around before you- *House catching on fire* *frisk makes a pun about papyrus being a hit head* Sans: I see you're catching on. *winks* *frisk realize he meant they're on fire too*
And as shown in the outside of her house she has 2 windows. Not only that, there is more than one room in undyne's house, assuming that there is a 3rd window.
Am imagining the aftermath be like Sans: heya br- WHAT HAPPENED?! Papyrus: BROTHER HELP ME MY HEAD IS ON FIRE!!!! *undyne and frisk runs laughing* Sans: something tells me you two did SOMETHING to paps Frisk: *undyne did it Undyne: HEY Sans: YOUR GONNA HAVE A BAD TIME! Undyne: oh no The End