Top Ten Undertale Boss Fights

The Top TenXW

1SansSans or Sans the Skeleton is a character in the 2015 RPG Undertale created by Toby Fox. He is a lazy, pun-loving skeleton who is a supporting protagonist in the "pacifist" and "neutral" routes of Undertale, and a heroic antagonist/final boss of the "genocide" route. He is known for his incredibly difficult more.V1 Comment

It's emotionally awesome. And "Hopes and Dreams" is so far the most different theme for a true final boss, in my opinion.


Hands down the best, I love the music, the character and the purple heart mechanic, it's the best. - FullMetalTimelord

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4Mettaton Ex
8PapyrusProbably the second most popular character from the already insanely popular 2015 indie RPG known as Undertale, Papyrus the skeleton is Sans' taller and skinnier younger brother (much like how Luigi is to Mario in the Super Mario Bros series, except that Papyrus is physically stronger than Sans) who more.
9Undyne the Undying

The Contenders

12Mettaton NEO

Lol just joking

13Mad Dummy
14The Amalgamates
16Alphys NEO
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