People:

Frisk.roblox character

Flowey.flowey

Toriel.ms p

Napsterblook.Napsterblook

Sans.george pig

Papyrus.penny pig

River person.???

Undyne:pony

Temmie:doggy

Alphys:zizzie

Mettaton:robbie the robo piggy

Muffet:kitty

Mettaton ex/neo. Robbie ex/neo

Asgore: mr p

Asriel: ghost bunny

Gaster:stichrath

Royal guards:zizzie's sisters

Grillby:grandpa pig

Mad dummy:memory

Places:

Ruins:distorted memory

Snowdin:forest

Waterfall:alleyways

Hotlands:city

Core:plant

New home:house

Weapons:

Stick:stick

Toy knife:hammer

Tough glove:baseball bat

Ballet shoes:purple key

Torn notebook: beartrap

Frying pan:mr p's blaster

Worn dagger:crossbow

True knife:gun

Any questions or any undertale characters you would like to know are getting replaced by?