Final Fantasy X Cheats

Valefor's Second Overdrive
Return to Besaid anytime during the game and you'll find a little girl standing next to the Temple with a Dog. She'll give you Valefor's "Energy Blast"
This Overdrive for does much greater damage than usual. The only problem is that is Recovery Rate is slower.

NOTE: If the little girl is not near the Temple, check the Item Shop.