Frisk- Kirby

Chara- keeby

Flowey- Marx

Toriel- escargoon

Napstablook- one of those light enemy guys from Kirby’s adventure

Sans- parasol waddle dee

Papyrus- bandana waddle dee

dogs- various minibosses (gigant edge, bonkers, etc.)

Monster kid- gooey

Undyne- meta knight

Mad dummy- silver waddle dee (the one you can beat up in a few of the games to test abilities)

Gaster/mysteryman- pres haltmann

Alphys- Susie

Mettaton- an altered version of Susie’s mech

Mettaton NEO/EX- altered versions of haltmanns mech

Muffet- magolor

Asgore- king dedede

Omega Flowey- Marx soul

Asriel (child)- elfilin

Asriel (adult)- fecto elfilis

Like I said earlier, story elements will be changed to make certain character choices make sense and also to make the AU more original