Top Ten Hardest Undertale BossesFrisk
The Top Ten
Look at his attacks! Unless you are a extreme boss, this boss is the hardest times about ten!
I think Sans overrated character bus his fight hardest fight in this game but not best fight.
Lol whoever wrote ode to sans is hilarious
I died at the last spinning gaster blaster part 13 times! the rest of his special was fine but all the other attacks are annoying as hell! number 1 all the wayV 40 Comments
Looks like the hardest boss ever (tied with sans) because it's so powerful imagine a talking attracting deadly flies swinging cactus hands and shooting barrages of seeds all at once. Well good luck on that one because its pretty damn hard
I died like 15 times on this fight. The main things that got me are the finger guns and the FLIES UNAVOIDABLE anyway this boss proves that Flowey is the best character and nothing will ever beat him
Dear lord this is a true nightmare hands down the scariest thing or event in undertale he is also my favorite boss because it sticks out
This ain't that hard, after the first pause, its easy as only it's first attacks are powerful, his later ones take off only 0.5% of your health...V 6 Comments
How is this fight hard? You can't even die in it!
You can die but in asriel's first attack if you die you go 2 attacks back so for asriel's first form you have to live. In his true form, however, id you die it doesn't matter.
What? This is not even that hard. Omega Flowey is WAY harder.
YOU can't DIE your SOUL WILL REFUSE
I still think Sans is harder, but Undyne should be second place, the best part, you 100% deserve the absolute ass whooping you receive when fighting her.
Probably 2nd hardest honestly
I beat every boss in undertale within 4 or 5 tries. This is all except for undyne the undying (who I have been stuck on for weeks) and sans (who I haven't fought because I'm stuck on undyne the undying). Omega flowey took me about 3 tries, and was a really quick boss fight because I'm pretty sure you don't have to repeat phases. Asriel shouldn't be on this list because you can't die to him. Asgore was the hardest boss in all of the neutral/pacifist route (took me 5 tries), however he does not even compare to the difficulty of undyne the undying. She should be second on this list.
Should be 2nd to be honestV 27 Comments
Actually, the fight is not that hard of you eat the pie.
Hard like an algebra test
I beat Asgore first try, Muffet and Undyne were pretty hard thoughV 2 Comments
The background music is good but he is challenging as hell!
Spam Boast and I'm not kidding it's easy after that.
I'M STUCK ON HUM NOW UGH I WAS STUCK ON UNDYNE THIS MORNING, BUT IS TAKE HER OVER THIS BOi
This is way harder than any of the above apart from sans.
Here's a little fun fact: I died to Undyne more than I did to Photoshop Flowey, Asriel Dreemur and Asgore combined. The NORMAL Undyne, not Undyne the Undying. WHY ME - Mewtwo660
I don’t understand how some people get through this so easily.
Took 3 days. I asked my dad to try. He beat it first try. What the heck?
Still stuck here
This boss was so hard to beat for me. Sure not as hard as undyne the undying and sans but this is harder than papyrus and undyne and mettaton EX!
Really really hard >:(
He was only threatening in Disbelief. In regular Undertale, he is a cake walk. - TopTenX
I don't think you can actually die against him - it's impossible.
What the hell so easy beat him first try
After I completed my Genocide route, I was feeling like I could defeat anything. And then I remembered the Dummy in the Ruins. GOD, I had to hack the game to get past him. All monsters bow before the dummy.
This is the hardest boss no doubt. The rock in the ruins might be tougher to beat though.
I find it ironic that Ruins Dummy is on the list but Mad Dummy isn't.
2 good 4 uV 13 Comments
But toriel's attacks avoid you
Hardcore, I was stuck on them for a very long time. He wouldn't turn yellow, and I was so confused
Please tell me you are joking. - BrokenLightbulb
On him rn and it is so frustrating
I don't need friends! I've got knives!
i'm out of knives.
Hardest boss ever! Who else agrees?
He is awesome and he is so hard if you think sans is hard try this dude
He kills you if you don’t have the artifact
She's not even in Undertale! - BrokenLightbulb
Harder than any boss combine
SO EASY - coolgamert
THEN WHY IS HE HERE? - BrokenLightbulb
Give me a gun. - BrokenLightbulb
TEMMIE for the win
So hard. - PolishDude
HOI AnD WeLcOmEz To... LiTeRaL hElL! - WarriorCatsHater
HoI I'm TeM wELcomE To TEm shOPV 1 Comment
Harder than undyne, muffet and maybe mettaton
Can't kill a ghost
Don't cheer his dapperblook...I DARE YOU
Very nasty first time.
Took me a few tries to beat this one
I like how ditching Jerry is an option. Just ditch him a couple of times
IT TAKES FOR EVER TO KILL HIM
HE DOESN'T EVEN ATTACK. - BrokenLightbulb
HOLY MOLY THIS IS THE TOUGHEST FIGHT EVER
Gives you hell
This guy should be last. - BrokenLightbulb
Oh jeez this has to be the hardest. Most people don't know how to battle Chara. Look it up on Youtube and watch. Most are fake actually or fan-made. Trust me, harder than Sans.
I'm do so awesome
This dude sssoo easy
Related ListsTop 10 Undertale Bosses Top 10 Easiest Undertale Bosses Top Ten Best Bosses in Sonic, Undertale, Five Nights at Freddy's, and Transformers Games Top 10 Fanmade Undertale Bosses Hardest Undertale Fights
2 years, 184 days old
Top Remixes (4)
2. Undyne The Undying
3. Omega Flowey
3. Omega Flowey
2. Omega Flowey
3. Asriel Dreemurr
View All 4