- For the type of monster, see Boss Monster.
List of Bosses[]
Neutral Route[]
Toriel
Papyrus
Undyne
Mettaton EX
Asgore
Photoshop Flowey
True Pacifist Route[]
Asriel Dreemurr
Genocide Route[]
Undyne the Undying
Mettaton NEO
Sans
List of Midbosses and Minibosses[]
Napstablook
Doggo
Lesser Dog
Dogi
Greater Dog
Shyren
Mad Dummy
Mettaton
Royal Guards
Muffet
Amalgamates
So Sorry
Glyde
Mad Mew Mew
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