List of roles: Keeby is Frisk. Shadow Kirby is Chara. Elfilin is Toriel. Kirby is Papyrus. Bandanna Waddle Dee is Sans. Meta Knight is Undyne. Susie is Alphys (y'know, robots and all) Mr. Frosty is Mettaton. King Dedede is Asgore. A wand named Wanda is Flowey. Omega Flowey = Hyper Wanda Ribbon is Asriel. Ado is Napstablook. Fecto Elfilis is the Mystery Man / W.D. Gaster?
AU by me.