the lighning bolt minigame only required good reflexes......

the Aeon Sidequests were pretty easy........

The only weapon sidequest I had a problem with was Wakka's (Blitzball is gay, so I never play)

and after doing all these (which greatly raised my sphere grid completion).........
I kill the boss in like three hits.

Ever played Devil May Cry in Dante Must Die Mode? Even with extremely good skills, most of the completion would be luck. And it takes a long time for luck to come around.

I always play RPGs for the story. Not the difficulty. Except Final Fantasy 1.