Kingdom Hearts II Info please!

I Just got kh2fm+ Three days ago. I have Questions:

Secret ending:What modes can I get it in?(I started on proud)
E.S.:Is he impossible or difficult? What do I get for Beating him?
Data Fights:Are they Difficult or Incredibly Difficult? What do I get from each one of them?

 

1.Standard, Proud, and Critical mode
2.Difficult, +1 drive gauge
3.Xemnas-power up
Saix-defense up
Roxas-magic up
(don't know what you get for the rest) hope this helps a little.

 

Data battles are very Difficult I reccomend high Level,Useful abillites for Example Glide From Final form Is very Useful in Marluxia data Battle(So true),and a good Keyblade i Only Beated 4 Now,Now to get Data battles you need to Battle Each Organization Member Once and you will be able to Data Battle with the respective Member,The place where data battle and all that i think it is In cavern of Remembranc,am i right?(But i dont really can give you alot of Especification)

 

Well, all I know is that for Critical mode, you need to beat the E.S., lock all worlds, Defeat Mushrooms and beat the data fights to unlock the secret ending.

The E.S. is very, very difficult. Probably the hardest boss I've faced in the history of video games. <_< You get an upgrade to your crown on your head.

The Data fights aren't easy, and aren't insanely hard, but will give you a bit of a challenge. You get an upgrade of your crown (on your head).

 

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For Critical Mode, you also need to complete all the puzzles in Jiminy's Journal to get the Secret Ending.

 

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