Even if you could discover a way to travel to other universes to save alternate versions of yourself, you would probably only be creating duplicate universes and there would still always be a version where you didn't show up. Also, I wanted to tell you about another variant of your world. The other asker mentioned mercyplates, but I recently saw one called baby mercyplates where he took you out of your tubes too soon and overpowered his badness with the sheer power of cute. so cute babybones <3
“OH! SO THERE ARE LOTS OF UNIVERSES WERE HE DID NICE THINGS INSTEAD! THAT’S GOOD!”
“yeah, but that means mom didnt find us.”
“… OH. WELL … MAYBE WE MEET ANYWAY LATER ON! MAYBE HE’S A REALLY GOOD DAD AND HE TAKES US TO MEET HER!”
[Sans knows this wouldn’t really have happened, but doesn’t want to crush Papyrus’s hope.]
“WERE WE REALLY CUTE WHEN WE WERE THAT SMALL? I DON’T REMEMBER IT.”
“I’m certain you were precious. I know you are right now.”
[Papyrus giggles and hugs Toriel.]
“i guess that makes sense, tho. i mean, if there are all those other universes … i guess we’d never be able to get to all of them.”
[Papyrus still wishes he could save all the other Papyruses and Sanses and give them Toriels to love them.]