Potential titles include: "The Fall of the Underground", "Ballad of Undyne the Undying"

Sample line:

"Alas, the bot had negative defense / And was cut down in only one hit."

THIS IS BRILLIANT.

Seriously. It fits.

Now I have to do an Undertale Edmund-Fitzgerald-parody, because everything's better with Sans.

Lol, the "And with water balloons we'll all pelt him." line cracked me up... and the hamster part didn't cease my laughter, either! ...I gotta listen to the original song to hear what this would sound like :D

That's great! Wow, that is a tough tune to make a parody of. Kudos! It would fit perfectly!

Haha..."Trouble With Tribbles"...hahaha... :)

LOL!