Most Bad Ass Boss Battle?

[Memorix]

The fourth installment in my " Boss Battle " threads: Most Bad Ass Boss Battle Ever. For me it would simply have to be GLADOS from Portal. I imply on this character merely becuase of her outragous dialouge. Although fairly simple to beat and she wasn't all that much of a challenge her taunts made up greatly for it. So what is the most bad ass boss battle you have ever faced? And why is this boss battle so great?

[Koopaking]

I don't think I can choose just one... so here's some top ones.

For whatever reason, I just really like Quadraxis from Metroid Prime 2 Echoes. Big awesome robot, and he's pretty fun to battle.

The End from Metal Gear Solid 3 was just plain awesome. That boss was so fun to fight, you're chasing this old man around the forest, playing a game of sniper cat and mouse. Of course, even funnier is the fact that you could kill him after a cut scene about an hour before and avoid fighting him altogether.

I know this one is kind of cliche and on everybody's favorite bosses but of course... Sephiroth.

Magnus von Grapple from Paper Mario the Thousand year door needs to go on here too just because I love that thing.

Oh and Shadow of the Colossus the entire game.

[quietchat]

Sephiroth is a big obvious. Let's see.... in other terms of EPIC, there's fighting the evil wizard in Legend of Zelda, A Link To The Past just after we see him make Zelda disappear (I assumed he killed her when I first saw that and I was pissed). Also epic from Zelda, Twinrova in Ocarina of Time, Andross in StarFox 64 (True version), Jenova in Final Fantasy 7, Diablo in... Diablo....

And because I have to include it in every game related thread I can, Legend of Dragoon, fighting Lloyd, fighting the King, Fighting Kongol, fighting Dragons, Fighting the final bosses: TOTAL EPIC GAME!!!

[SmokedBoo]

Twinrova from Ocarina of Time.
Gyorg from Majora's Mask.
Morpheal from Twilight Princess.