Can't be any help with the Gummi Ships, unfortunately - I did everything to fill and fulfill Jiminy's Journal, but I never so much as added a new block to my Gummi Ship
- I think in KHII I attempted one Gummi Mission once (ever)
Black Ballade brings back some painful memories - I remember getting lucky the very first time by getting a round right without mistake (but not again for a bit afterwards).
The pause and unpause trick works well if you're willing to do it an obscene amount of times towards the end when it gets really fast. If you can, trace your finger over the screen on the one you're trying to follow, keeping logic in mind as to which way it could have darted/faced afterwards (even though this is practically redundant considering how fast it moves/jerks towards the end). Stay far away enough too so as to get a good view of them all. What I can't remember is whether going into 1st-person view was more of a benefit or a detriment (I think 1st-person view is better IF you can land yourself into the right position, while being careful to avoid Goofy standing in the way
)
A consolation is, if I'm not mistaken, you can get more than one lightning stone per completed round against the Black Ballade. Waiting until you have as many Lucky Lucky / Lucky Strike as you can get before attempting it would help reduce the amount of times needed to fight it.
From what I see from
different sources, 5 Lightning Stones in total are required in total.