[DarkGaleOwl]

The hardest boss for me on my first time through the game (Which was on PSX) was Wrexsoul because I did not know where he went and thought that you had to kill the soul savers and on my second time through the game (On GBA) it was Omega Weapon who was the hardest for me.

[pwn3r123]

Number 128 was the hardest but thats only cause i havent beaten the game but i love it all the same

[Terra Branford]

I'm not very far in VI but ultros was hard just because he kept killing terra and banon.

[midgetbob]

Also Wrexsoul as i forgot how to beat him... Plus, my team consisted of Umaro, Terra and Strago who was way lower then everyone else. I spent a considerable chunk of time trying to remember before getting my phone out and texting someone.

[Taigon]

i found varagus hard cause i didnt understand how the blitz's worked XD i thought i had to select the command, pick the target, then enter the combo, had to look on the net for a walkthrough which told me how to do it proberly (was on gba version later on snes version)

[Belugn]

I think the boss fight I had the most trouble with was that guy on the very top of that magi tower. I was using the berserk strategy, but when I casted it at him, his current elemental immunity seemed to be EVERY element or something, because it didn't matter what sort of magic I through at him, be it elemental or non-elemental; it didn't damage him at all. So had to redo my berserk spell a couple of time until I finally could start to reduce his HP. Took me very long.

Otherwise; Vargas. I am not alone having trouble with him, solely because I had no idea about how you used the Blitz... xD

[KainsBro]

I'd have to say the first Ultros fight, he kept killing Banon, and Banon had FULL health! One hit kill, about 5 times in a row! Man, I was pissed!