That One Boss

[ultrachicken]

I guess the first time you kill a Behemoth in Fallout 3. Does that count as a boss?
Anyways, shooting a nuke at a mutant the size of a house isn't challenging but is freaking cool.

 

[koeniginator]

any LoZ bosses, but the bosses from the wind waker were amazing.

 

[Mr. Gency]

The second to last fight in Kingdom Hearts 358/2 Days.
1. Because of the music http://www.youtube.com/watch?v=97-ZJ6qEuVY
2. Because of the context

Spoiler: Here's a link to the fight, if you care

http://www.youtube.com/watch?v=ZcLAlQHugRk&feature=related

Demyx from Kingdom Hearts 2. The Time Trial with his water clones is so much fun once you know how to do it.

I hated the time trials even after I figured put what to do I still wished I could move on with the fight.

 

[The Last Nomad]

Anything from Monster Hunter...
Or The End from MGS3

The Ultimate Sniper Battle

 

[Urgh76]

That Twilit Fossil guy in Twighlight Princess in Arbiter's grounds!

[sub]funnest...[/sub] boss battle..... EVER!!!!!!!!!!

 

[Bloody Crimson]

The second to last fight in Kingdom Hearts 358/2 Days.
1. Because of the music http://www.youtube.com/watch?v=97-ZJ6qEuVY
2. Because of the context

Spoiler: Here's a link to the fight, if you care

http://www.youtube.com/watch?v=ZcLAlQHugRk&feature=related

Demyx from Kingdom Hearts 2. The Time Trial with his water clones is so much fun once you know how to do it.

I hated the time trials even after I figured put what to do I still wished I could move on with the fight.

Ah, I hate TT's too. But this one happens to be easy...a least to me it's fun.

 

[kawaiiamethist]

Ultimecia in FFVIII.

 

[zHellas]

The Thresher Maw on Tuchanka in Mass Effect 2.

 

[Grey_Focks]

Matriarch Benezia from Mass Effect was pretty awesome, along with every boss to appear in a Metal Gear Solid game, with special nods to The End, The Boss, Ocelot (in all forms) and Psycho Mantis. when I first played MGS and he read my memory card and moved my controller I shit bricks.