AU ideas I've seen nobody come up with, however I have no name for

Paperfall

I keep trying to write this down and keep failing, and I'm making a game so uhm, it's free for you to use now

Chara = Frisk
Frisk = Asriel
Flowey = Chara
Toriel = Napstablook
Napstablook = Toriel
Sans = Undyne
Papyrus = Alphys
Grillby ig? = Snowdrake
Undyne = Papyrus
Muppet = Muppet and Grillby
Alphys = Gaster
Mettaton = Mad Mew Mew
Asgore = Mettaton
Asriel = Asriel/Chara idk-

You figure everything else out