Top 10 Hardest Undertale Bosses
I die to the first attack every time. I only got past the first attack once, I only got to the seventh attack, and then died on the next
It took me over a 100 times just to beat a lazy-funny skeleton who Actually can kill you without even fighting it's just insane oh yea now your jumping over bones which he does it pretty fast oh, great now blue then white bones its just crazy when your done halfway it just gets crazier your being thrown with force very fight with bones appearing in the red box which is very hard if u lose control, and u have to dodge all the gaster blasters SOMEHOW and then the final attack going threw a wave of bones then ALL THE FREAKING BLASTERS U HAVE TO RUN AWAY FROM THEN HE THROWS YOU EVERYWHERE until when u kill him... it's also the 1. saddest death. he says "Papyrus do u want anything" and u feel really bad now. :'(
Sans is by far strongest, let’s not forget he is the one that attempts to get revenge for his brother and friends. He may be a bit lazy, but his terrific humor is too funny to be bad. Anyways, Sans is the strongest despite his low hp.
I've died probably over 100 times at the point and I'm not getting anywhere close to beating him. My personal ranking is: #1 (by far) Sans, #2 Undyne the Undying (probably died over 15 times), #3 Omega Flowey beat him in one attempt on my first playthrough and only died once on my second.
Other boses are challenging but you can memorize there attack patterns over many repeats you can do that with flowey sure but I don't have the reflexes. I remember coming out of the asgore fight and found him one of the easiest bosses but then flowey came and killed me almost instantly over and over I haven't fought sans or Asriel but I can't see them coming close to the difficulty of flow since I can't fight him for more then 20 seconds
Omega flowey (or photoshop flowey) is, in my opinion the hardest, as it’s much harder to remember the attacks and honestly, he is actually terrifying
Although his battle does SAVE, no amount of skill can let you NOT DIE on this guy. To be fair, I haven't attempted the genocide route, so I haven't battled Undyne the Undying or Sans, but he is much harder than Asriel, as his battle SAVES even more.
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
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.
It took me 3-4 tries to get used to there attacks but after that they were quite easy to beat
But guys, try beating Asriel without even supposedly dying, you'll see he is DAMN HARD
Sans may be the strongest but he can't even beat asgore nor asriel since sans is the almost main character dosen't mean he's the strongest
One of the hardest bosses. Worn dagger is the strongest in this route but burnt pan is the best. It can do 300 or more damage with perfect hit.
I'm stuck to the pacifist checklist, and have no healing so he's impossibly difficult.
Asgore took me a while to beat but after that, I got his attacks in my head easier.
The only boss that I died to more than 1 time (Not counting Papyrus)
Undyne The Undying is so strong because of her Determination to protect the whole world in the genocide routeand is confirmed to have Determination she will melt when she tries to do this in the neutral route.
Undertale is a flawless game besides the fact that Toby wanted the 2 bosses of the genocide run to be hard and not so fun. But I think that some parts of the undyne fight are pretty fun pretty good boss. But why is she at 5, she should be at least 2 maybe even 1
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.
She was so annoying to beat her green heart attack things were easy enough but I died a lot on the red heart parts because they were really hard to douge
HARD you have to dodge all his attacks ALSO have to get hit to raise the like preformance thing above 6,000 to get rid of his arms then it becomes a little more easy
Mettaton is the hardest pacifist fight, in my opinion. His attacks are super chaotic, and almost impossible to dodge. Some may say Asgore is harder, but once you get his attacks he's super easy. It took me 8 items to beat Mettaton and only 5 for Asgore. I died 3 times for both but barely beat Mettaton with 2 health whereas beat Asgore handily. The reason why Mettaton is harder than Flowey or Asriel is because you can't lose to them. Anyway, Mettaton is epic.
Only person I died to in pacifist run through (and that was my first time through)
The background music is good but he is challenging as hell!
Waterfall is peaceful without Undyne and Mad Dummy. It should be noted there's a way to skip a part of the battle if you get low hp, or even better if you use a skip with healing item. This skip is not a glitch, by the way.
The only way to spare her is running away until your red and then run to the hotland bridge, let her faint, then give her water.
Undyne is just hard no matter if its genocide undyne or regular
This is way harder than any of the above apart from sans.
Muffet got my vote. The way her attacks come at you. Eat a spider donut in front of her to skip the battle or if you already bought a spider donut in the ruins, in the dinner phase a spider will bring up a note and the battle will end. Struggle or pay to slow her attacks. Took me many tries.
Muffet is my fave character and super evil and cute. I mean, she can also control your soul like Sans and every time I see the doughnuts and pastries I get hungrier which breaks my concentration
Muffet is actually pretty easy to beat IF you saved the spider donut or spider cider. I had it and ate it in front of her. But if you don't have one, you have to spare her 17 times, I think.
like mettaton you have to survive past her "pets" breakfast,lunch,dinner then desert then one of the spiders tell her it was a mistake that there was another person with a striped shirt (probably chara but who knws) then he lets you pass
No...Papyrus is easy...Plus you can skip his battle and befriend him if you die three times instead..
Papyrus is pretty easy if you ask him on a date then he gets really distracted
He was only threatening in Disbelief. In regular Undertale, he is a cake walk.
I don't think you can actually die against him - it's impossible.
Technically, you can't die in this fight, but just TRY to not get to 2 HP when you are on pacifist. It's freaking impossible!
No... Toriel is not the hardest boss, his the easiest boss just click spare do nothing
Strangely I defeated Photoshop Flowey in three tries but on Tori on my second playthrough this was hard.
But toriel's attacks avoid you
Waterfall is peaceful without Mad Dummy and Undyne. There's a way to win this in five turns but this requires certain moves on the enemy turn.
Took me many tries. I just couldn't lead the projectiles to the dummy without getting hit myself...
He took me around 4 or 5 tries to beat, so not really that hard...
I don't need friends! I've got knives!
I'm out of knives.
this papyrus is so hard that the first attack brings you done to 1 hp and the fact that he can block in phase 1, reflect in phase 2 and keep you from using items, and the fact in phase 3 he summons undyne and sans
Bones orange bones blue bones orange Gaster blasts sans and Undyne the undying
He is way stronger than regular papyrus
*Papyrus no longer believes in you
Hardcore, I was stuck on them for a very long time. He wouldn't turn yellow, and I was so confused
Froggit didn't understand what you said, but was flattered anyways.
Hardest boss in game. don't even tell me anything else you fool!
Just a normal froggit, but it took me 26 trys and this froggit, is a hacker, or am I gliched?
I mean... I like his lore.
He made the op sans
The blasts lol
W.D gaster is almos impossable to beat. 1 he can crash your game. 2 his attacks are hard to dodge and 3 he can't be spared or killed
This is actually mist likely the strongest character in the game, he created this world (undertake), so he can easily destroy it all, he could kill you (Frisk),Sans, Papyrus, Undyne, just with a single button
Hardest boss ever! Who else agrees?
Is it even a boss
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.
Legitimately can't get rid of her in your files (unless you do some complex "hacking" stuff) so yeah
Chara is a god. She can kill you so quick.
At the end, you end up dying from her
He is awesome and he is so hard if you think sans is hard try this dude
The strongest sans
Lasers hands and laser moever
He kills you if you don’t have the artifact
Da tems to hard to beats
Temmie for the win
HOi wElCOme tO...
TEMMIE: HOi I'm TeMMi (temmie is trying to glomp you)
BOI THIS WAS SO HARD I BROK MY KEYPAD AND THEEN HAD TERRIBLE DIARRHEA
You control Frisk, so you can't kill her. Maybe in fan-games, but not Undertale.
Frisk is easy to beat. Just get her soul to run into something harmful.
Frisk is easily the hardest boss in the entire game, you can’t even hit them. Why did Toby Fox put an unbeatable boss in the game smh
I lke chocolate
He almost instakills you with a single hit, manipulates you and makes it impossible to escape. By sheer luck they make a mistake and use a super heal on you which they could use on themselves easily! Also don't even have the option to act! They just have one attack and they go first instead of you plus they will remember everything!
Yeah also the omega flowey is insaneley hard
This dude sssoo easy
Hell to the naaw
He has fReAkInG more Determination than you in the fan-game.
Seen videos and don't even wanna try cause of how he is
I tried but I wasn't good so I died very quickly
;-; I don't know why did I vote for him
The attacks cool but difficult
Alphys have lasers Gaster blasts fast forward play raced rewind and
Harder than any boss combine
She's not even in Undertale!
This is easy all of the attacks just barking when you just used ACT (in pacifist run) I don't know what happens if we do a GENOCIDE RUN. maybe you should try it!.
Honestly I was stuck on this for so ages my 1st run. I was trying pacifist but gave up and went neutral.
I feel so sorry for so sorry. He doesn't mean to fight you. He just ran into you and started the fight
This is a secret boss, but it's hard, I can say it's the sixth hardest boss after ASGORE
Harder then muffet, undyne, papyrus and maybe asgore but not mettaton
I don't know who he is
I wouldn't know. I played on a computer.
not that hard second time through
probably low because switch exclusive BUT HARD