Quote Originally Posted by ICallRikkuFunGirl
I need HELP!!! defeating the spherimorph in the Macalania woods. PLEASE!!!
Its been a while since I faced it, but have Lulu in your party. He has a weakness to a certain element. However once you figure it out use the spell that he's weak at and then he'll change his element weakness to a different one. I recommend you use scan. And use Yuna too. Have Yuna summon Valefor
since it's the only aeon so far that can use all elemental spells. Now, have
Valefor use Attack command, and doing so will bring Spherimorph to use an
elemental move. It may be Water, Ice, Lightning, or Fire.

I only have one question, how do you get Tidus's best overdrive?

Keep on using Tidus' overdrive and you'll get it. I think 80 times or a little bit more of using his overdrive you'll get it.