Top Ten Undertale Boss Themes

Glad this one's at the top right now! It's definitely my favorite boss theme.

Sounds itallian but robotic

It's so catchy and cool!

Well, this is a pleasant surprise.

It gives a cosmic theme to it while fighting Asriel

Both sad and happy and hopeful

It's the end of the world, but... Hopes and dreams can save the world! - Delgia2k

My teacher: Time for a math session! Megalovania =?
Every student: The best boss theme ever!
My teacher: No, not quite.

I then grab a shotgun and shoot her like crazy.

How is this not first?! This was my favourite song of all songs for some time!

Wow

SANS

This theme is extremely catchy and always gets stuck in my head. I love it to death and I think it deserves more love.

The song it's self isn't great,but the remixes it inspired I enjoy.in conclusion I voted this as my favorite

My favorite, personally.

Umm...7? seriously? come on... this is awesome

Ze best.

My top 10 is:

10.- Spear Of Justice
9.- Temmie Village
8.- Amalgam
7.- Dogsong
6.- Death By Glamour
5.- Hopes and Dreams
4.- Song That Might Play When You Fight Sans
3.- Battle Against A True Hero
2.- Bonetrousle
1.- Megalovania - Yendks

It's catchy and it's in 2nd place in my top 10.

It's really catchy!

I really love this theme. It's my favorite. And I also love the meaning of the battle. Through out neutral route. We see her commenting on how much she hates humans. Yet now she is protecting them.

Feel kinda sad every time hearing it because SPOILER ALERT! you have to kill undyne to win

I love this, this is my favorite, here are some songs that I really like ( They Might be fan-made songs )

- Death By Glamour

- Megalovania

- Dog Song

- Bonetrousle

- Uwa! So Temperate

- Alphys Takes Action

- Hard Drive

- Spear Of Justice

- Your Best Friend

- Temmie Village ( you knew it'd be on here.)

- Disbelief Papyrus

- Megalo Strike Back

- Undertale Rap Down To The Bone

- Alphys

- CORE

IT'S SO GOOOD

The only logical answer. - Brobusky

Haha really funny

While this isn't for the best ending of the game, it's definitely a great final battle song.

Probably the most underrated theme. It’s fairly simple, yet powerful

I <3 love love GOAT MOM!

TORIEL IS THE BEST

YEAH GO GOAT MOM! WE <3 YOU!

None of the people voting on this list have actually heard this theme, have they? - xandermartin98

I want this at my funeral.

The best in my opinion and a more epic version of hopes and dreams

I think this should be in the actual game. This is magnificence.

Amazing inktale megolovania. *claps*. Wut a masterpiece yuuush! *Humming tokyovania intenseifies*

Is this Endogeny's theme? Because it sound like dogs getting abused.

DO YOU WANNA HAVE BAD TOM - Yendks

Kinder Sans:DO U WANT 2 HAAAVE A BAD TOM! Kinder Frisk:no

I added this because I like Toriel and classical music

I LOVE THIS SONG!

Sans is probably one of my favorites. You could hum this all day!

In my opinion the worst boss theme. It's just too repetitive.