There are many bosses in FFX however, two of them seem to difficult to beat. Im talking about Yunalesca and Seymour Flux.
Seymour Flux
(needs to be ported to the wiki!)
Tips below:
re: Battle Strategies
SEYMOUR FLUX
Just have Auron, Tidus, and Lulu witha there overdrives, then have all of your aeons, with there overdrives! in the beginning of the battle just have tidus, use hastega, and just have yuna summon each aeon, and seymour will be dead, and wont even have the chance to attack you, even once!
Lots of people say he is hard, which he is without the right stuff. I remember when I first got this game and memorized the entire dialogue because I died so many times. But, that's not the point. Ok, the easiest way I know to beat him, is to start with Lulu, Rikku, and Tidus. Get Tidus to cast Haste on Lulu, Rikku to steal the first time, Lulu cast Bio then switch her for Auron on her next turn. Then switch Tidus for Wakka (it isn't necessary, but I do this) and then have Rikku use Super Mighty G (1 Light Curtain and 1 Lunar Curtain, or 2 Light Curtains or 2 Lunar Curtains). After this just keep on attacking and healing anyone with the Zombie status. Attack Mortiorchus a couple of times to absorb high amounts of HP from Seymour. After he uses Total Annihilation heal with a Mega Potion and an Al Bhed Potion and continue attacking him as he should be dead soon from the poison.
i have an easy way to beat that BLEEBING BLEEBER called Seymor FLUX. first go into the menu and arrange your team in this order:
1)Rikku 2)Tidus 3)Yuna
this is cos they have the highest agility. get all 5 Aeon Overdrives then engage battle. i have put a step by step method for simplisity sake
1) Rikku: use Mix to get Super Mighty G. 2) Tidus: Hastega 3) Yuna: summon Valfore. 4) valfore: Energy Blast. seymor will kill Valefor. 5)switch Rikku for Auron' attack for roughly 2000-4000 DMG 6)switch tidus for Lulu and use Flare OR an AGA type spell 7) yuna: summon Ifrit 8) Ifrit: Hellfire seymor will kill Ifrit 9)switch next character (NOT Yuna) for Wakka and only have him use Silence Buster every turn (stop seymor using Toal anihalation) 10)swith next character with Kimahri use Mighty Guard 11) Yuna: summon Ixon 12) Ixon: use Thors Hammer. 13) swith kimhari for Auron and have him attack. 14) Yuna: summon Shiva 15) Shiva: use Diamond dust 16) Yuna: summon Bahamut 17)Bahamut: use Mega Flare
Yunalesca
(needs to be ported to the wiki!)
Tips below:
re: Battle Strategies
im not sure about this but here goes
[b]Yunalesca[/b]
When your fighting Yunalesca's first form:
save your overdrives just keep attacking and have yuna in your party at ALL time so she can cure
Second form:
shes gonna use hellbiter which causes zombie on everybody
this is where yuna comes in.use dispel when yunalesca casts regen when you are zombied and two of your characters should have auto med
and someone with high hp like auron or wakka should stay zombied while you pummel yunalesca with attacks
and remember to cast hastega and she should reveal her true form soon
third form:
this is the time when she uses her mega death attack
if your characters arent zombied then they will die
someone with high hp should be zombied i had auron zombied and had him use pheonix downs when they died and made tidus keep recasting hastega
now is the time to unleash your overdrives
after all overdrives are used summon your aeons and she should probably fall
if she doesnt have lulu cast some spells and then the battle should be over
Yunalesca This for me was one of the easyest batlles in the game, but you have to put Rikku's customize to work by getting about 150 holy waters and making death and zombie proof armor, you should only equip your main party with the armor unless you have the money to buy more holy waters. The battle with her is easy when you do this, every time she cast megadeath, it uses a phoenix down on you!
shell use hellbiter which will turn your characters into zombies. then shell heal u and since your a zombie u take damage. if u have holy waters use them and if your lucky shell slip and cast a healing spell on one of your characters that it NOT a zombie and it will heal them. just keep attacking. MAKE SURE U LEAVE AT LEAST ONE OF YOUR CHARACTERS IN ZOMBIE FORM WEN U BEAT HER SECOND FORM BECUZ SHELL USE SOMETHING RIGHT AFTER THAT KILLS ALL NON ZOMBIE PPL BUT IF YOUR A ZOMBIE IT JUST MISSES!!!!
Form 3
now it gets tough, shell still use hellbiter so holy water that. shell also use death, so again its good to sometimes hav a character or 2 in zombie form. if your aeons overdrives r full, or even if there not summon them and attack. keep attacking with your characters and aeons attacks, and or overdrives. use yuna to cure( make sure da person isnt in zombie form wen u care them this was a mistake i made numerous times and it cost me the battle ) keep attacking and shelll die.