Most annoying Video Game Boss is...

Yeah that was her name.
I just remember another one Nereid? final boss from Tales of Eternia. If you don't use Ultimate Identity Reviver it's game over and have to start the battle from start.

 

Hardest I've beaten was probably Ballos from Cave Story. You have 50 HP. Entire dungeon full of death spikes, crushing boulders, and awful, awful floods of monsters, then a miniboss, then a three-stage transforming final boss that charges directly at you, shoots lightning, turns into a giant ball and tries to crush you, then summons swarms of bats and archers after turning the floor into spikes and surrounding himself with rotating platforms.

Oh, and all of your weapons are reset to level 0 when you enter the dungeon.

 

Philemon from Persona 2. I debugged the game to beat him.

 

Pretty much ALL of God Hand is incredibly hard. Sometimes when fighting enemies they'll randomly transform into demons after you defeat them, and they become mini bosses themselves! One wrong move in that game and you die, and healing items are very hard to come by.

 

All The Bosses in super robot taisen og saga endless frontier

 

Pretty much this. I hate hard long battles where you need to utilize your best effort to advance the storyline.

 

Especially the last battle
that one was a long son of a b****

 

TWEWY bosses are a bitch on hard or the level above that.
Seymour Flux from FFX.
I was confused by the twoheaded dragon in phantom hourglass so it took me a while to figure out how to hurt it.
There are others but I'm too lazy to remember them. XD

 

hardest boss is this one: and i think this one is the upper hardest: from super paper Mario

 

Sephiroth in Kingdom Hearts II

nuff said

 

I hate it when a boss has the terrain in his favor, working against you. Especially when he or the terrain is capable of pulling off a one-hit kill.

Examples include Doctor Robotnik in Chemical Plant Zone, with the platforms on the edges that drop you into bottomless pits, and Magma Dragoon in Mega Man X4, whose fighting arena is surrounded by pits of lava. Especially since Dragoon is very fast and Zero never gets access to a weapon he is vulnerable.

Not especially difficult once you get the hang of it, but it's an irritation I'd rather do without.

I also hate bosses with bullshit shields or invincibility frames that are too long or only serve to allow them to pull off their elaborate attacks without getting stomped in two seconds. Mega Man X's Sting Chameleon comes to mind. The fight with him is way too long if you don't have the boomerang cutter, thanks to his constant phasing out.

 

The final boss from 358/2 days... she just kept coming back!

 

Cloud of Darkness!!!!!!!!!!!!!!!!!!!!

How I curse that name!

 

probably no one's heard of this game:luna online
but the boss at the end,tarintus, is hard for a team of 7 lvl 90s!

 

That's just sick..

I think I just Wet myself.

I think the most annoying video game boss is...!
From Final Fantasy 7:
Emerald Weapon. (Should have used the tactic from Ruby Weapon.. >_>)
Ruby weapon (But I beat it without the internets help or cheats)

From Final Fantasy X: Omega Weapon

Oh gosh I hate this game so much now... I spent, what... 1 - 2 hours looking through the secret dungeon with omega weapon in it after finally being able to comfortably kill the monsters in here. I got all the way to the end with pretty much all characters with half of their MP down. I didn't have any Final weapons, my Summons weren't all that fantastic. And then I found this beasty.

I simply refused to be beaten (After using god knows how many MP healing items, HP healing Items, Revival items, etc..)
After FINALLY beating it. I wanted to kill it again -.-

 

The earth fiend in final fantasy IV.
You barely beat him once, then he transforms and comes back with half your party dead or with looow health.

 

Game: Tales of Eternia
Boss: Maxwell (optional)
Why: He has 34,000HP and phisical attacks and techniques do 1 damage.... One hell of a long fight....

 

Sephiroth... Only cause he's over glorified by fanboy fags...

 

What do you mean by over-glorified? He's actually not that hard at all.

 

tavion at the end of the game in jedi academy.not hard to beat at all. but WAY to easy. seriously i wanted more of a challange for the last boss. she was easier than all of the weak sith at the start of the game