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Does anybody remember that boss in FF IV where you have to use the reverse of what you're doing to inflict damage? I forgot the name right now but that one was really annoying and hard. Why? I never seem to be timing my attacks right until I realized that once that boss makes attack skills into a curing skill, all you need is to cast curaga a few times and/or use an elixer (twice I think for elixers).

Guessing it took you as long as it took me to realize Regen + Shell on Rinoa made things a lot easier, plus Meltdown on Adel, and then from there just blasting away with Irvine's Hyper Shot, spamming Zell's Punch Rush/Booya repeatedly, and then of course Squall's Renzokuken/Lion Heart for game.. 22 tries to figure that out is too much, I was of course a we-todd back then and kept summoning Doomtrain until I finally realized that wasn't such a good idea sweatdrop

I've yet to find any Boss hard, but I have found a few of them to be very, very annoying..

1. XATM-092 (FF VIII): This guy was annoying for the simple fact you had to KO him and run like bejeezus.. Several times.. And I found out the hard way if you do too much Damage to him, he'll clunk for 2 seconds and then get right back up immediately.. Made it a bit too sadistically fun to watch it get shot to swiss cheese during the escape cutscene XD

2. Omega (FF V Advance): He wasn't hard, just extremely annoying.. Took me a while to get a good pattern down to beat him, he was actually harder than Shinryu.. Reflect on itself throughout the fight, had a lot of full-Party attacks that were annoying, had Memory Out which ejected a Party Member, and if you Rapid Fire it and it survives, it can do a consecutive 3-4 Rocket Punches, Memory Out, and other attacks in rapid succession and just annoying spam..

3. Neo-Shinryu (FF V Advance): Annoying for the simple fact it had the "invisible targets" taking most of the Rapid Fire attacks for it.. It makes me want to backhand whoever the genius was that decided that was a good idea.. At least the hours upon hours of just mugging Crystal Dragons for Dragon Lances paid-off in the long run..

4. Gerogero (FF VIII): He hits my entire Team with Blind, and Zombie, and a whole host of other annoyances, gives crappy Draw Spells, and is an utterly worthless Boss because one Phoenix Down and he goes poof.. *grabs megaphone* DESTROY BUILD DESTROY!! .......Yeah..

And that's just a few.. Of course the Goddess in FF VI also, but that's for later XD

Well right now in FFX being the only one I own besides 3, which I have a gameshark for, I would have to say seymor the third time and balamut from the summoner when yuna and the others are imprissoned. I mean gezz how many times does seymor come back? I am on Mt Gazzat and am stuck on seymor there please help me. Also I hate how he can make aeons disappear in an instant.

That's not hard to do either, in fact if you're ever on Youtube, check out the video "FF8 ONE MILLION damage limit break", roughly 101-102 combo's in a '12 second' span.. Amazing..

Two Hard Bosses, before I figured out how to beat them anyway, were always Gil Turtle and the 4 Crystals, both from FF V Advance..

Gil Turtle, in Galuf/Krile's world, was a royal pain because at that point in the game it was like Omega, spamming attacks that could instant-kill or just as bad.. Took me a while to remember to pre-cast Float on my Party, that made a world of difference..

The 4 "Crystals", they were hard for a while, took me about 15 tries to beat them, then I realized 2 Zeninage (while having at least 100K Gil in stock) was enough to kill them :/ Can we say 'waste of time'?

I think you're referring to Lugae. He was definately annoying. neutral
Others i've had problems with are
(IV) the demon wall mad Golbez stressed Zeromus scream I defeated him when my highest was at level 90.
(X) Seymour, just stay dead already cry the Extractor, which actually made me quit for a while. xp and I forget the name but its after the final set of trials