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
5AsgoreAsgore Dreemurr is a boss monster and the king of the monsters in the 2015 RPG Undertale made by Toby Fox . Asgore is the portrayed main antagonist who plans the acquire seven human souls and use their power to break the barrier that seals the monsters underground . Aspects of his character are hinted more.

By far the most depressing boss fight. You don't want to fight, and neither does he, but he thinks fighting is the only option.

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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