Most epic boss fights ever

[psimaster]

You know what to post. I would say Xemnas from KHII.

[CrispyChicken]

@Psi- Ansem from KH1 as well. And the final bosses for KH3D. Most final bosses are pretty epic in KH.

Derek Simmons from Resident Evil 6 (Leon's campaign)
Mr. Sandman/Mike Tyson from Mike Tyson's Punch Out
Ares from God of War
Zeus from God of War
almost any boss fight from God of War :p
Krauser from RE4
Sephiroth from KH2
Red from Pokemon Gold/Silver/Crystal haha

[bearhawk72]

Staypuft in Ghostbusters:The Video Game.

He basically chases you the entire level then you have to fight him as he climbs a building.

-Pretty much every boss in Shadow of the Colossus but namely Malus, Avion, and Phalanx

[GamerKid123]

The Last boss from Killzone 2

[OmegaShadow]

Zero from Mega Man X 2
Every boss from TWEWY
Yami from Okami
Dark Link from any LoZ game you fight him in

[ARedLetterDay]

Punks.
Any boss from Metal Gear Solid, namely: Gray Fox, The Boss, The End, The Sorrow, Liquid Ocelot, Sniper Wolf, President Johnson, Peace Walker. Just to name a few.

[Slime Slayer]

Ultros lol.

[fenrir1887]

Hard to say for me. I found Xaldin in KH2 to be an epic fight, but that's just me.

[samejamesbond]

Baby Bowser at the end of SMW2:YI was godly.

[StarfoxFan2009]

hmm... i'd have to say the Black Knight from Fire Emblem

[Kong]

Out of This World
You are the guy with red hair. The alien with red eyes is the final boss. The other alien is your buddy.

Starts at 21:25.
3DO Longplay [001] Out of this World - Another World - YouTube

Out of This World 2
You are the alien with the whip. The alien with the red eyes is the final boss. In this video he is just standing there looking like a bad ass and getting his butt kicked and doesn't really look like he deserves it, but he is a prick that deserves what happens. He killed most of your family and village, enslaved you and any of your village that survived, and killed your buddy Lester.

Starts at 36:17.
Sega Mega-CD Longplay [030] Heart of the Alien - YouTube

[kiwinavega]

I remember when I was young the boss fights in Super R-Type always seemed like events. Especially the one where you fly around the bottom of the ship, then fly backwards around the top and had to use your little drone as your main weapon. That was awesome!

[psimaster]

How do you start up out of this world?