Kingdom hearts 2 is a Real TIme RPG that created by square enix adding Final fantasy characters and Disney Characters. The story is ok, might not fully understand without playing KH1 and KH Chain of Memory. Though controls and movements are simple enough to know.
As for question 2 it is only for the Playstaion 2 For the third. Used section of Gamestop, Ebay, or Amazon.
You should play the first one first, otherwise II will be horribly confusing. Also, both 1 & 2 are for PS2. Anywhere they sell games?
Some people will recommend you play Chain of Memories right after 1, and before 2, but I skipped it and when I went back to play it after 2, it wasn't worth the money just for the tiny plot details.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.