Okay so I played through FFX recently-ish (when it was remastered) and completed the entire game, did all side quests and filled up the whole sphere grid etc. I've played this game so many times but I've never done a challenge like No Sphere Grid or Single Character. Right now I'm leaning towards doing a Single Character challenge and I'm thinking of using Yuna. Just wondering if anybody has any tips? What character do you think is best for doing Single Character? Tidus sounds fun, but I think it might be too easy since he's a very well rounded character. Admittedly I almost always put Yuna down Auron's grid first chance I get and make her super powerful anyway, which is possibly why I'm keen to use her. Also, should I use the Standard or Advanced sphere grid for my single character run?