The Underground's Final Hero

by IblisVoid

An alternate ending to Undertale. To get this ending one would need to complete one Genocide run and a few pacifist runs before getting this phone call from Sans. Going as far back as the 1st human's descent into the underground, this story is very spoiler heavy and contains themes of suicide and some swearing and ideally, would be the way to save a timeline from a genocide run.

2. I've done something really bad

*Something bad? What are you talking about?

You tell Sans about the photo of everyone you found in his Lab. He blinks curiously and then reaches into his jacket revealing the photo. A group picture of all the monsters Frisk had become friends with.

*A...A picture!? How did you know I had-

Sans takes another look at the photo, slightly tilting it to show a different picture.

*Its a picture of all of us...but whats with these red crosses? Is this some kind of joke?

*...

*...

*Frisk, what are you trying to say to me right now!? Is the person in this picture you!? The REAL you!?

-Yes

-No