Hello!

I have never ever played any Kingdom Heart games so far but I am considering giving it a go since its so praised by its fanbase.

Although I have no clue which game I should buy in the whole serie, I think there are some remake and HD versions.
I don't want to buy 2 copies of the same game, with 1 of them that I would never open.

So which Kingdom Hearts I should buy to have the full story, the full experience ?

I own the PS2 and the PS3.
The PS4 will come as soon as FF15 is released.