Ruran posted pretty much what i'd change especially on the story buuuuuttt so not to be lazy~
Worlds:
Ruran said:
Most of the plots for Disney worlds were taken straight out of the movie rather than having its own story that fits in with KH's overarching plot. It was like watching watered down versions of Disney movies were this random people walked on set but they just kept filming around them. Whenever I went to a Disney world I felt that I'd rather go watch the movie it was based on then continuing the game.
Ruran pretty much said how i felt about the worlds of kh2.
Difficutly:
OMFL It was way to easy!I didnt even USE magic or any kind of strategy for this game. Drive forms didnt help.
I'd add a bit of what kh2fm had. Its critical mode actually fixed this problem.
Drive Forms & Summons:
Summons were useless.
Drive forms on the other hand were cool and fun yes (love limit and anti) however they only made the game easier than it already was. Like magic and summons you didnt need them.
If i could change it would probably remove summons and drives in favor of a sync blade ability that can only be used temporarily like drives.
Time Skip:
Would've kept it less than a year since CoM cause at this point we minds well have never had kh2 sora since he's only been used for one game :x plus i prefer the kh1 models of the main characters more.
Atlantica:......never again......
there is no fixing it just take it out.
Gummi Ship:
Probably in a minority but i hated the gummi levels just made going thru the filler worlds of the game even more tedious.
Would be no levels for me~
Sora:
Why'd you get so dumb bro? WHY?
Not sure if theres a change that could be done to fix him at this point Ծ_Ծ
Dialogue:
It was like the entire script was "Sora, Donald, Goofy!" repeated over and over.
I'd change it....not really sure how probably try to get someone who wrote kh1 back on for it.
Pete & Maleficent:
Her return never really explained and she's been a joke of a villain since. Pete.....just die......
My Change: they'd never be there.
Plot:
It was basically just jumping for one world to another hoping for a Org scene =/ it didnt focus on the org who was supposed to feel like a threat. The very second you took control of sora it lost the mystery it had when you was roxas.
My change: Same as dialogue.
100 Acre Wood:
Why as this in the game?
Tron would've been a more fun minigame world imo.
Reaction commands:
....Part of the reason the game was so damn easy. Never want them back.