The undefeated video game Boss

[Proteus214]

The forth demon (the fire guy) in Demons Souls. It's such a grind to get back to him after dying for the tenth time that I had to take a break from the game altogether. I refuse to use Gamefaqs for this game!

 

[Batfred]

For a long time, it was Edea on my first playthrough of FFVIII. I had breezed through it in about 20 hours and was way underpowered. It was my first foray into FF games and I didn't realise that the game should last close to 100 hours (30-35 at least to be prepared for her). I then did the walkthrough version and felt cheated becasue it was too easy. Ho hum.

 

[Tohuvabohu]

Igniz.

Granted, every single boss from King Of Fighters gave me nightmares and took me around 30$ in quarters to beat. I was NEVER able to beat Igniz. I tried so goddamn hard but I was never good enough to beat him. I managed to beat every other KoF boss AT LEAST ONCE. But not Son of a ***** Igniz. It broke my heart sending my best fighters after him round after round just to watch them get ruthlessly murdered after whittling his health down. Just to see him regen his health to full at the end of every round.

I never had the chance to actually own that game though :\

 

[Ryuu Akamatsu]

Letz Shake in No More Heroes 1. So fucking impossible to beat. I've never even landed a hit on him.

 

[Tjebbe]

The final boss in I wanna be the guy proved too hard for me.

 

[Fidelias]

I-No, from Guilty Gear Accent Core. When playing Arcade mode, not when I was just doing a random match.

I even turned down the difficulty to as low as it could go. I know, I suck at fighting games, stop laughing at me...

 

[DevilWolf47]

I can't remember her name, but the final boss from Ogre Battle 64: Person of Lordly Caliber was pretty tricky on my first playthrough. Another boss...
...actually i'm having to really rack my brain here. It's been years since a game really challenged me, and it's rarely the final boss that challenged me the most since by that point normally gamebreaking mechanics are unlocked. But if i absolutely had to name a second one...
...Dr. Steimen. I accidentally killed myself throwing Electro Bolt while we were both in water.
...twice...

 

[C2Ultima]

Recently, some of the bosses in Dissidia Final Fantasy: 012 Duodecim have me pulling my toungue out with a pair of pliers.

 

[C117]

Sephiroth in Kingdom Hearts II, on hardest difficulty.

Come on, that ponce just flails his sword all over the place, not to mention that bullshit-attack that leaves you at 1 HP and those flame pillars that pulls you towards them...

 

[spartandude]

Im ashamed to admit it, but i have yet to defeat Andross in star fox 64

 

[Volothos]

Sure, this guy managed to beat it but I'd ragequit around the 3rd continue,which wouldve been really soon, or just give up when i see the army of purple

 

[Anachronism]

Hardest fight for me in ToB is either the final one against Melissan (because it takes a long, long time with no resting unless you have a Wish spell) or against the Drow priestess whose name escapes me. That fight was a pain because of the enemy constantly spawning at the door while she is resurrected as a new class in statues around the room every time you kill her. I think there are 9 statues and, of course, they favour cleric and mage. So lot's of Breach spells are needed.

Sendai, I believe her name was. For me, that fight was just long, rather than particularly difficult. There is a way I found to make that fight a lot easier. As you said, whenever you kill a statue, two regular Drow spawn at the door. With the later statues, they're far enough across the room that it's possible to kill the Drow, but then be far enough away that the statue won't attack. Then, you can go to the Pocket Plane, rest, and get all your spells back. Makes fighting Sendai herself much easier.

As for boss battles done right, I still think the final battle of Shadows of Amn is a very good example. The penultimate battle against Irenicus, in Suldanessellar, was actually much harder, I thought, but the final one just feels much more epic. It's you against four demons and Irenicus, who has transformed into the Slayer. He tends not to use spells much, which is why it's easier, but the way the fight is arranged makes it feel like the epic battle a final boss should be, without being frustratingly difficult.

 

[Rooster893]

That...fucking....TRIPLE SHORYUKEN!!!!!!!!!

 

[Canadamus Prime]

The final boss in Dead Space. Stupid ***** keeps eating me. The one time I got past that part, I got trampled by mooks.

 

[Leemaster777]

Dullaham from Golden Sun: The Lost Age. He keep using Djinn Storm messing up with all of your stats and he can summon Charon, the second most powerful summons in the game. So combine these two together, you will be defeated for sure.

Oh yeah, I forgot about that guy. I actually enjoy fighting him, he's a pretty decent challenge in that game. Plus, after you beat him, you get to summon him with the Necromancer class.

Try fighting him in Arena mode, where you have to fight infinitely respawning boss fights. The higher your level, the more powerful the bosses become. Yes, that means that Dullahan gets even STRONGER there than in the main game. I've never been able to beat him more than once or twice in a row in that mode.

 

[Breaker deGodot]

Giygas. Seriously, who would ever think to stop attacking and [spoiler:]pray?[/spoiler]

 

[Casimir_Effect]

snip

Sendai, I believe her name was. For me, that fight was just long, rather than particularly difficult. There is a way I found to make that fight a lot easier. As you said, whenever you kill a statue, two regular Drow spawn at the door. With the later statues, they're far enough across the room that it's possible to kill the Drow, but then be far enough away that the statue won't attack. Then, you can go to the Pocket Plane, rest, and get all your spells back. Makes fighting Sendai herself much easier.

As for boss battles done right, I still think the final battle of Shadows of Amn is a very good example. The penultimate battle against Irenicus, in Suldanessellar, was actually much harder, I thought, but the final one just feels much more epic. It's you against four demons and Irenicus, who has transformed into the Slayer. He tends not to use spells much, which is why it's easier, but the way the fight is arranged makes it feel like the epic battle a final boss should be, without being frustratingly difficult.

I never thought to use the Pocket Plane anytime except when out of battle. I've heard many people say it offers a nice way out for some of the harder battles (although certainly useless in the final 2).

Irenicus in Suldanessellar is a terrible fight. He's just too powerful. Even when out of every other spell he gets rapid fire magic missiles which can kill you in seconds. The only way I could ever take him was to draw out his Death Spells and then summon Nishruu or Hakeshar and let them handle most of the job, running in at the end with a spellshield and mincing him quickly. The final battle, as you say, is far better, possibly due to magic playing a smaller part.
I think the best battle was the one in ToB against Yaga Shura. It's not just all your party piling onto 1 ridiculously powerful character as Yaga has a whole load of friends. So the fight requires more tactics and micromanagement. Especially since Yaga himself is no pushover and heals like a little girl.

What do you think of the final battle in NWN2 against the King of Shadows? I always thought that was a good example because, agaiin, it feels very epic. Also good to look at: one thing that engine did well (possible the only thing) was to have great spell effects. So in a fight like that, with all your companions running around (those left) throwing out spells where possible, the end results looks nicely fantastical.

 

[Ultress]

Raga Naja from DDS2 , not because he's particularly hard it's I'm ungodly lazy and don't want to spend time leveling up the mantra I need to beat him.

Bowser and the Shadow Queen from Paper Mario 1 and 2 respectively I don't know what it is but I can't beat them to save my life,doesn't help that the fights are broken up by long ass cut scenes.

 

[TyrantGanado]

Yiazamat on FFXII. Mainly because the fucker has 50,000,000 (yes, fifty million) hit points.

I also never beat The Undying, but I was underlevelled and never bothered to try again.

I managed to beat Crawmerax on Borderlands though...I fucking love using me some glitches to get me sweet loot.

Also, honourable mention. Jinpachi. Fucking. Mishima.

 

[Da Joz]

Emerald and ruby weapon from FF7.