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List of All Undertale Bosses Ranked Best to Worst

Updated July 12, 2019 7.0k votes 613 voters 3.5k views20 items

If you had to choose one, who would you say is your favorite boss from Undertale? There are definitely a lot of great boss battles in Undertale, so for this list we're going to rank every Undertale boss from best to worst. The indie darling from 2015 has an extremely dedicated cult following, so you better believe that fans of this game have strong opinions about their favorite bosses.

What exactly makes for a good boss battle? You can rate these Undertale bosses in terms of challenge-level, creativity, and overall fun. Maybe you just think they look cool, or have unique abilities that you've never seen before. Whatever the reason, vote up your favorite boss battles from Undertale, including mini-bosses when applicable.

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  • 1
    Sans
    496
    96

    Sans

    End of Genocide Route, Last Corridor

  • 2
    Asriel
    364
    95

    Asriel

    End of True Pacifist route

  • 3
    Asgore
    310
    96

    Asgore

    Castle (New Home)

  • 4
    Mettaton
    300
    98

    Mettaton

    Lab

  • 5
    Undyne
    314
    105

    Undyne

    Waterfall

  • 6
    Photoshop Flowey
    319
    110

    Photoshop Flowey

    End of Neutral Route

  • 7
    Papyrus
    310
    113

    Papyrus

    Snowdin

  • 8
    Muffet
    254
    103

    Muffet

    Hotland (miniboss)

  • 9
    Napstablook
    219
    122

    Napstablook

    Ruins (miniboss)

  • 10
    Greater Dog
    206
    118

    Greater Dog

    Snowdin Forest (miniboss)

  • 11
    Toriel
    216
    126

    Toriel

    Ruins

  • 12
    Mad Mew Mew
    149
    92

    Mad Mew Mew

    Sans' and Papyrus' Kitchen, Snowdin (Miniboss, switch exculsive) 

  • 13
    Mad Dummy
    191
    128

    Mad Dummy

    Waterfall (miniboss)

  • 14
    Amalgamates
    162
    128

    Amalgamates

    True Lab (miniboss)

  • 15
    Royal Guards
    152
    120

    Royal Guards

    Hotland (miniboss)

  • 16
    Dogi (Dogamy and Dogaressa)
    155
    125

    Dogi (Dogamy and Dogaressa)

    Snowdin Forest (minibosses)

  • 17
    So Sorry
    142
    119

    So Sorry

    Art Club Room (miniboss)

  • 18
    Doggo
    153
    132

    Doggo

    Snowdin Forest (miniboss)

  • 19
    Glyde
    111
    152

    Glyde

    Snowdin Forest (miniboss)

  • 20
    Shyren
    107
    160

    Shyren

    Waterfall (miniboss)