Top 10 Longest Video Game Boss Fights EVER 

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The longest boss fight I've ever fought was a long streak of youtube ads.

I went into nyx avatar underleveled and boy was it a close fight. Three hours overall and half that time I was barely hanging on. Finished at 3 in the morning on a school night. Most memorable boss fight of my life.

What sucks about the Adamantoise is the fact there’s a chance he’ll ‘accidentally’ swat you with his foot, knocking you across the map and out of the fight area, WHICH RESTARTS THE FIGHT FROM THE BEGINNING!!

With respect but the tales of symphonia boss in question, while certainly difficult, it can be beaten in a time close to the 16 minutes without being an expert (i know it because i did it and i have video proof) . About the final boss of okami, although it is a long battle, it only took me like 40 minutes as much on my first run because my problem was more figuring out how to beat it more than the difficulty of the battle itself, which was not particularly demanding either.

I actually had to fight the Adamantoise twice because the first time i fought him he randomly pushed me far away from the battle area 🙃🔫

I can think of a few fights that take awhile. Khan Mayker from Doom Eternal, Clotho from God of War 2, Leviathan phase 2 in Dead Space both of and remake (for different reasons). Mr Freeze from Arkham City, Wesker from RE5, The Butcher from the Diablo series, Vergil from DMC1&3, Abadon from Darksiders, Shaft for Castlevania SOTN, and finally, The Knight sentinels from Elden Ring. There's all the bosses I can list.

Saw Yiazmat in the description and immediately thought "Yeah, he was annoying as hell but if you want a REAL insanely long Final Fantasy fight they'd better have Absolute Virtue on here!" and you guys didn't disappoint. You had multiple Linkshells working together in literal 12+ hour shifts only to still lose when the bastard decides @ 30% hp to pop Chainspell+Manafont and just spam Meteor on anything and everything in sight, combatants and spectators alike! I still remember hearing about the first LS to take him down when they came across a wall glitch exploit that let them lock him in and after he went down a bunch of GM's warped in to give them all a round of applause before promptly suspending all their accounts for technically cheating even though it was pretty much the only way to kill the bastard lol.

Absolute virtue. My linkshell fought him for 18 hours.

That huge FFXV turtle, I accidentally fought under leveled & unknowing. I beat but took all my healing items and almost 3hrs.

You forgot the fact that you can actually skip the end's fight entirely by popping him in the head in an earlier mission, where he's being carted around in a wheelchair.

It took me maybe twenty minutes to defeat Adamantoise. I'd heard ahead of time that it was supposed to be really long fight, so I expected it to take longer. I made sure I had some magic with the "death" effect attached, but I didn't actually think it would work. And yet, when Adamantoise had a little less than half its health left, the status effect finally kicked in.

I myself have only recently got into gaming, so I can't remember fighting any bosses that were particularly difficult.

Having just beaten Grigori from Dragon's Dogma I think it deserves a spot on this list, it took me soooo long to finish the fight that I was considering going to sleep and continuing the next day.

That awkward moment when you just finished playing Okami a few hours before this video was uploaded 😅😅

That final boss on Legend of Legacy for 3DS was a brutal battle that took TWO AND HALF HOURS to beat! His first form was tough enough,but when he took his second form I wanted to throw the system against the wall.

Video Gamer 1: “You have no idea how long I’ve been fighting that thing!” Video Gamer 2: “At least you were battling a giant tortoise, while I was dealing with an old man sniper.” Video Gamer 1: “Really?”

This has me excited to see what final fantasy 16 has in store for us for lengthy boss battles!!

Adamantoise is actually pretty easy if you carry on spamming the Ring of Lucii and ensure you have a bunch of elixirs handy.

The adamantoise fight took me so long, that I ended up having to take 2 naps while fighting it 😩. PS4 was sounding like an AC unit after it was all done 😂

I haven’t played most of these, but I remember that stupid monster you have to fight in the arena for force unleashed 2 dragged on forever. And then it just kept going. It stopped being fun after a while.

The End is also one of the fastest boss fights as you can kill him before you even get to the point in the video.

The battle with Yami is beautiful.... didn't mind the length.

Really nice to see Abyssion on this list. TOS was by far the best tales game imo and it deserves more recognition. Just started replaying it last week.

Not sure if anyone actually played it on here or remembers it but there was a game for ps2 called seek and destroy. You played as a tank fighting a war against other tanks. It was fun to play. Now I don’t know if it was actually hard and lengthy but as a kid I always remember the final battle against the enemy tank king felt like it took forever to beat. He has three phase which might have caused this.

The Ur-Dragon from Dragon’s Dogma should be on this list.

For very important matters here are two of the longest bosses who are cheap, tough, annoying, and irritating that a very long time to beat and who are too stubborn to be eliminated. Gunstar Heroes-Green Seven Force boss. Kirby and the Amazing Mirror-Dark Mind boss.

Haven't played FFXV yet but I like the idea of a common enemy in the older games (Adamantoise) being turned into something more threatening in the newer ones.

Trema in FF X/2 was about as long a boss battle as I can take. Most other FF I’ve not completed are down to the length and the fact you need a specific strategy to beat.

Proudly can say I've slayed ol' Yiazzy back on the PS2.

You should do a list of obscure/hard to get to bosses. Like new game + exclusive bosses. My submission would be Epilogus from Radiant Historia Perfect Chronology. You have to do a 100% playthrough and get the best ending and then do it again on new game +. You would be hardpressed to find any screenshots or footage of it online, but I promise it exists.

I just love how Kojima says "this Boss has a Timer, you have around one week to defeat the end. If you can't do it in time, I do it myself " figuratively speaking of course

Ouroboros from Bravely Default. A good number of phases, each taking a long time. Not to mention the cutscenes in between and him healing himself SO often. You really need to set aside some time to fight him.

As a Metal Gear and MGS fan myself I can tell you there's an easy way to kill The End. What happens is that The End's parrot is the one who is able to see through the mountains and forest and then tell him on where to go. So what's the secret? You can actually tranquilize and eat the parrot. I don't remember if it is before or during the fight. Also, there's an easier way for The Sorrow and Psychomantis as well. I forgot the easier way for The Sorrow but for Psychomantis is below: *Remember that this was on PS1 and I'm not sure on how it will be on the remake.* So supposedly Psychomantis can read and erase your memory card on your PS1. To stop this from happening and making him confused during the fight you eill need to keep switching the memory card from dlot 1 to slot 2 and vice versa. The funny thing though? He makes comments about the games that you have saved unto your memory card. Lol

Absolutel Virtue back in the day was ROUGH!! We had a 3 LS alliance go after it and after 11 hours we manages to get it down to about half life and it despawned when a tank screwed up the aggro chain when he fell asleep at the keyboard.

THIS GUY JUST WON'T GO DOWN!

THANK YOU TO PUT PERSONA 3 FES. IM SO DEPRESS TO FIGHT THE NYX! :')

While Absolute Virtue definitely the longest back in the day, the level cap did increase from 75 to item level 129 (with stats much higher than that.

Nyx avatar from persona 3 ... it took me 1 and a half hour to almost beat him but at the very end he charms my party members to heal him

Fought and defeated Adamantoise today! Only took about half an hour, but still felt rlly good beating it!

I remember yiazmat back in the day, took me about 4 hours. You can even zone in and out to take a break

When it comes to the Adamantoise from Final Fantasy XV... *laughs in Ring of the Lucii*

4:33 oh i remember yami that damn fish took a couple of hours even with upgrade weapons

Gundam MS Saga: A New Dawn for the PS2, the Optional boss of Omega and Ultima. The path to this pair of bosses is savage, with the hardest encounters in the game, and you have to clear a miniboss that is no slouch before ever even getting to this pair. And you have to be MOVE PERFECT through every sequence, or they will insta-kill each member of your party. Check out Gaming Emblem's runthrough.

The corrupted rot god in Kena Bridge of Spirits. I don’t understand what on earth were Ember Lab thinking, having a boss fight THAT long with no checkpoint.

I love boss fight in game they amazing how short and long boss battle in game

No Ur-Dragon from Dragon's Dogma? That was one omission I have to say was a no-brainer of a choice. A dragon that presides over death, and was where Xenoblade stole its nemesis boss idea from. That for sure should have made the list.

For me, the three longest was the first time that I fought a Chosen One on X-Com 2, the Dark Lord on Doom Eternal and first time that I played against Kerrigan on Starcraft 2

Adamantoise is easy if you use the ring. Can be done in less than 15 minutes. Now Omega Weapon on the other hand - that one took me a good hour as I couldn’t get the hacks I saw on RU-vid to work.

I remember my first fight with The End, took 90 mins lol

I'd say the Elizabeth Green boss fight in Prototype is another long one. It took me a good 30 minutes at the very least.

Adamantoise in Final Fantasy 15 was not a hard boss, not at all. He just had so much HP, it felt like it took forever to beat him. I took him on at level 85. I had farmed one other hunt, a giant bird-like thing that when you killed it, you got a special item that could let you break the damage limit for a set amount of time. So, I went through and redid that hunt at least 5 times, if I recall correctly, to get enough of that item. Then, I went out to try to take him down. I didn't keep an exact track of how long, but I think it was at least 1.5 - 2 hours, maybe more. The fight wasn't difficult, but damn, it took a loooooong time. If my memory serves, he only managed to kill one specific teammate (Gladio, I believe) twice. I immediately revived him, then restored his health, and got back to work. It was a tremendous relief to finally finish him off. I had heard there was a aay to one-shot him, but I never really looked it up to try.

It is with great pride that I can say I have defeated the Adamantoise the item was soooo worth it, now Promto can stop dying so easily

WELL THAT WAS A LONG FIGHT!

I remember playing ToS on GameCube and taking around 40min to beat Abyssion. In the remake for Switch it took just under 10 somehow.

Fun fact about adamantoise. If you have the original patch of FF15 you could use the ring of lucii to one shot the boss... i found this out after taking 5 hours to beat it normally.

THAT WAS A LONG BOSS FIGHT!

Maaaan I remember my first fight against the Adamantoise. I was 40mins into the fight and got it below 10% HP remaining, and then randomly while mid-air it hit me with its tail or claw and sent me flying like 2km away, I got the Hunt abandoned text and had to restart the fight with it at 100% health after taking 5mins to run back to it on foot.

I've beaten Yiazmat twice before, and that was no small feat for me. My first victory took me ten hours to pull while the second one took four hours. I know that there's a way to defeat it in just under an hour, but I've never managed to pull off the preparations for it.

Defeating The End with none -lethal attacks in MGS3 you'll get his rifle and cammo. 😁😁😁

Adamantoise took me between 3 ti 5 in-game days to beat and this was before the Ring of the Lucii became available

Adamantoise took me almost 3 hours to kill. And that was after getting everyone's ultimate weapons, all royal arms and having the party over lvl 70.

Dang I never played any of these games, I thought The Zillo Beast on Lego Star Wars 3 was going to be on this. That is the only boss me and my two brothers fought for a really long time.

Anyone remember the Jinchuriki fight in Ultimate Ninja Storm 3? That shit took forever 💀

11:38 The horror! The pain! The torment!

Z from Xenoblade Chronicles 3 should’ve at least been an honorable mention here, that fight was by far the longest boss fight I’ve done in the Xenoblade series, as well as the longest boss fight in general I’ve done in a long while. I’ve never played Xenoblade X, so I wouldn’t know how long those fights are

I came back to Yiazmat 8 times, which helped reset the chance of reflectiga

😳....14 phases?.....🤯

Yiazmat is a great superboss.

With millions of health bars I’m curious on the actual health amount of yggralith zero

That buff senator fight from metal gear rising was long af

Extreme Behemoth in Monster Hunter World is like an average 30 minute fight and minimum 15-20 minutes

Some of these fights are unreasonable. Not everyone is superhuman.

I lucked out with the end. I don't remember how, but i managed to tranq him a few times and pick him off in about 20 minutes.

I played tis platforming game called BK3 and the final 2 boss fights make me want to rage to a level that would make the hulk jealous. You can level yourself up really as much as you want beforehand, but as you do the amount of xp you need to level up increases so eventually it becomes impractical until you beat the game and up the difficulty. But the first boss battle involves 10 launchers that fly and release monsters whenever they land. Not only that, but many of the monsters they release deal stupid high damage or insta kill you if you kill them when they’re too close. Then you have the final boss itself which can teleport, has a bunch of super damaging attacks, and can heal itself though luckily this only happened to me once. The last boss has, no joke, 5 bosses. Though one just goes around healing the others. Almost all of them can teleport, a few can fly. There are platforms you can hang out on, but even there you’re not always safe if a boss flies up and insta:kills you. Your only hope is to get a couple really good weapons or tactical items like energy balls and a boss layout that doesn’t kill you two seconds after you start. Oh and enemies can damage each other which is insanely helpful. Oh and after a certain point your game locks so you can’t go back and get more things. That’s almost cost me more than once, but I’ve learned my lesson.

That Nyx fight... gives me trauma again just by seeing it.

FFXII Yiazmat is my Nightmare back in my PS2 days.

Morgan Freeman in South Park.... pretty much gotta do the rage move. Draw his attacks. Do the rage move with a different character. Repeat. So 2 guys can attack each turn....takes like an hour

My hardest battle was the Ultima Weapon in FF8. Nearly depleted all my resources and spells just to beat it.

The Brain, from EDF 2025. Especially playing on solo. There's so much going on, and you have to go out of your way to eliminate any defenses it brings because you'll get overwhelmed fast. If you die once, it's aaaaaaaaaaaall the way back to the beginning, snd and this game is not forgiving

Oh yeah yiasmat, that was one tough Dragon 🙈 the reflekt tjing i too fall for once and healed him complete 😂 luckily i safed then and now so i coukd go back 😂

Adamantoise was so annoying I took almost a full week to beat him because I kept pausing after only a few minutes of the battle. A great challenge for sure but my god

Adamantoise had to fight him a few hours inhad to buy lots of stuff just to keep everyone alive and i had to just keep teleporting and running away just to survive most of the time it was a great victory but also exhausting one

Definitely should have had the last boss in Heavenly Sword on this list

When u complete FFXV first and do new game+. And right before you finish it for the 2nd time then go battle Adamantoise. I did That. Had all weapons and almost and all most max out on the all characters. Then it takes like 20 min to beat it. If I remember right. Its been like 4 or 5 years since.

Dragon's Dogma Dark Arisen..the Online Ur-Dragon takes days to defeat because each person In their game have to attack him Online...from everyone in their own game..like that one in this video and how many people online are fighting it dictate how long to defeat him

The original Metal Gear Solid on PlayStation 1 had two of my favorite boss fights ever

Honestly didn’t expect abyssion

Disappointed that Wild Arms 3's final boss isn't on here. A 5 boss rush to get to them, and then they have 10 forms, representing various things about the world, all with unique attacks and abilities...that you can plow through if you have the right build. That game was fun to break.

Personally I feel like Xemmas from KH2 should’ve at least been mentioned. There are around 4 phases to the boss fight and each of them have Xemnas with multiple bars of HP. If you die at any point of the 4 phases of Xemnas, you are forced to start back to the beginning. It’s especially difficult in critical mode since any attack is practically a 1 hit KO.

Abyssion...this dam boss...I was way underleveled when I fought him...took me 45-60 min to get thru this dude...

After 2 hours of using Prompto’s unlimited SMG and Rockets I said fuck it and used the Noctis’ ring. Took a few tries, but it worked. Mad props to anyone who actually beat Adamantoise the long way.

Like our undead dragon friend from dragons dogma bosses like these take a state sized community to annihilate them at all lol!

If AV wasn't the #1 I was going to riot! Virtue was such a long fight... having to rotate out people to rest.

it took me 9 hours to beat Yiazmat... I really don't want to remember the time I played it... Tough, exhausting and certainly not rewarding.

Love your lists😊😊😊❤❤❤❤

To those who've beaten Yiazmat, you're true Final Fantasy warriors. That Xenoblade Chronicles X boss, holy crap. Shame i never played the game since i don't have a Wii-U and there're no plans to port it to Switch, i'm a bit sad (C'mon devs please do it i'm begging you!)

If you shoot the parrot during the End boss fight,he’ll have a harder time spotting you.

On the ff12.. its gonna cast reflect? So that when i heal myself.. its gonna fully heal him??? Did i hear it right??? Sooooo autopots could be the key healing..

It took my 5 minutes to beat The End … changed the year to 3000 on the memory card and the cut scene shows him as a skeleton