Hardest Nintendo Bosses


The Top Ten

1 Inner Agent 3 - Splatoon 2 Octo Expansion

There is no other words to describe this other than just mean. I had to take several breaks during the fight.

While the battle is short, the amount of crap that happens in it is unbelievable. - SuperInkLink64

Why.. Just why.
I love that Nintendo made something more challenging but Jeez, THIS IS INSANE

It took me about a week, everything about this battle is hard, the autobombs, the bubbler and what killed me the most the splashdown

V 14 Comments
2 Cackletta (Last Battle) - Mario and Luigi Superstar Saga

One of the only times a Mario boss has been hard, was about to pick Bouldergeist, but realized one of the only reasons I was terrible against him was because I sucked at 3D Mario games, and I still kind of do.

She is a VERY, VERY HARD boss. My opinion of the hardest boss in Nintendo's history, maybe the hardest boss in VIDEO GAME history!

Great call for a difficulty spike!

1 hp just 1... I lost a few times!

V 1 Comment
3 Bouldergeist - Super Mario Galaxy Bouldergeist - Super Mario Galaxy

Is this hard? People are crazy. The attacks are slow, a million bomb Boos spawn each time and he's so big, you can't avoid hitting him.

Definitely the most difficult boss of all time, It is much harder than. Really impossible

I spent two hours trying to beat this guy on the daredevil run

Oh geeze, this boy took me so many tries to beat with the 1 hp challenge.

V 1 Comment
4 Ganon - The Legend of Zelda Ocarina of Time

It took me FOREVER to figure out how to beat him. I hated having to go through the castle every time.

It is not that difficult - Retroman64

5 Metal Madness/Overload - Sonic Heroes

This boss is hard but it's not a Nintendo boss it's a Sega boss

6 The Hag 1 - Banjo-Tooie

Very difficult to pass on replay mode with 5 health! Dodging the back lasers and positioning to get the clockwork kazooie eggs in on time is difficult but worth it.

7 Egg Emperor - Sonic Heroes

Not Nintendo, just sega

8 Tabuu - Super Smash Bros Brawl

Even on the easiest difficulty I had a hard time with this guy

Beyond incredibly hard on Intense mode! Should be number 1! - Blubbydubber1

Almost impossible on Intense Mode

He wasn't even hard in my opinion.
You have like 7 characters to kill him. - Johnalove

9 Master Core - Super Smash Bros For Nintendo 3DS and Nintendo Wii U

This boss attack moves are like ultra sans

All the people saying tabuu is hardest obviously didn't hear of sm4sh - VideoGamefan5

Do it without mods or customs on 9.0. I dare you. - SuperInkLink64

No. Just use a power-modded Captain Falcon.

Showmeyourmoves.jpg - xandermartin98

10 Admiral Jelly - Sonic Colors

NOT NINTENDO - SuperInkLink64

The Contenders

11 Bonetail - Paper Mario: The Thousand Year Door

You mess up, and you have to start again FROM THE FIRST TRIAL.

12 Mike Tyson - Mike Tyson's Punch-Out!!

Instant kills every hit for 90 seconds.

13 Weldar - Banjo-Tooie
14 Gyorg - The Legend of Zelda: Majoa's Mask

Why he's not on this list? He is hard as hell! You need to get in the water to hit him and if you don't escape from the water quickly, you lose like three hearts!

15 The Shadow Queen - Paper Mario: The Thousand Year Door
16 Grodus - Paper Mario The Thousand Year Door
17 Marx Soul - Kirby Super Star Ultra
18 Red - Pokemon HeartGold and SoulSilver Red - Pokemon HeartGold and SoulSilver Red is a Pokémon Trainer from Pallet Town, Kanto. He is the first character to be playable in the Pokémon series and his initial appearance is set in the Generation I main games. He has since then made various appearances in Pokémon media, including the Generation III remakes of Red, Green, Blue, ...read more.


19 Fiery Gobblegut - Super Mario Galaxy 2

Awesome but really annoying and ugly

20 Dark Link - Zelda II: The Adventure Of Link
21 Bald Bull Title Defense - Punch-out Wii
22 Shadoo - Super Paper Mario
23 Paint Roller - Kirby Canvas Curse

This boss is hard but definitely not the hardest boss in the kirby series. - KirbyZelda

24 Lancelot Returns - Sonic and the Black Knight



25 Mimi; Second Fight - Super paper Mario
26 Master Fortress - Super Smash Bros for Wii U

Isn’t this technically part of master core but just another phase? please correct me if I’m wrong

27 Disciple Lorithia - Xenoblade Chronicles
28 Mother Brain - Super Metroid Mother Brain - Super Metroid
29 Hooktail - Paper Mario: The Thousand Year Door
30 Bowser - Paper Mario
31 Queen Sectonia - Kirby Triple Deluxe Queen Sectonia - Kirby Triple Deluxe
32 King K Rool - Donkey Kong Country King K Rool - Donkey Kong Country
33 Phantamanta - Super Mario Sunshine
34 Giant Bowser - New Super Mario Bros Wii
35 Bowser: Final Fight - Super Mario 64
36 Kaptain K. Rool - Donkey Kong Country 2: Diddy's Kong Quest
37 Sans - Undertale Sans - Undertale Sans 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 ...read more.
38 Takumi - Fire Emblem: Fates
39 The Creators - F-Zero GX
40 Galacta Knight - Kirby Super Star Ultra
41 Diamond Dog - Earthbound

Diamond Dog is the final Sanctuary boss of Earthbound (or Mother 2 as it is known in Japan)

42 Wiggler - Mario Kart DS Wiggler - Mario Kart DS

This is the only boss in the game I had trouble with I beat the game and I still have a hard time I beat him with action replay codes

43 Zanza - Xenoblade Chronicles

This guy took me 30 tries to beat.
First of all, his amount of HP is HUGE. You can barely see the health meter drop every time you hit him.
Secondly, he will constantly give you annoying debuffs.
And lastly, every once in a while, he will unleash an unavoidable attack killing everyone on your team except for your tank, or perhaps maybe someone with a defense buff.

44 Spoiled Rotten - Wario Land 4
45 Jergingha - Wonderful 101
46 Ballos - Cave Story Ballos - Cave Story
47 Undyne The Undying - Undertale Undyne The Undying - Undertale Undyne is a main character in Toby Fox's 2016 RPG, Undertale. She is the heroic fishlike captain of the Royal Guard, who takes it upon herself to protect the monsters of the Underground. Her name is derived from the word "Undine", and is a pun on the word "Undying". Her most loved monsters are her mentor, ...read more.
48 Deathborn - F-Zero GX
49 Void Soul - Kirby Star Allies
50 Nightmare - Metroid Fusion Nightmare - Metroid Fusion
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List Stats

100 votes
51 listings
7 years, 179 days old

Top Remixes (6)

1. Master Core - Super Smash Bros For Nintendo 3DS and Nintendo Wii U
2. Bonetail - Paper Mario: The Thousand Year Door
3. Tabuu - Super Smash Bros Brawl
1. Red - Pokemon HeartGold and SoulSilver
2. Marx Soul - Kirby Super Star Ultra
3. Mike Tyson - Mike Tyson's Punch-Out!!
1. The Hag 1 - Banjo-Tooie
2. Ganon - The Legend of Zelda Ocarina of Time
3. Bouldergeist - Super Mario Galaxy

View All 6

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