Here we are, This is it! An only sold in Japan, limited edition deluxe collectors box-set Kingdom Hearts Final mix developed by square-enix (use to be Squaresoft) and containing everybody's favorite Disney characters. This Package came out in very limited quantities with the launch of the game. Rather rare + difficult to find nowadays.
Inside this Kingdom Hearts Final mix platinum limited set(the actual name of the box) is the full Kingdom Hearts game, in case with instructions, including all the final mix extra battles and goodies with the English voices(still for Japanese ps2s though) also with limited-edition only disk-artwork.
Plus the reason this package is really worthwhile: The collectors items! Inside the box is a small Kubrick-style action figure of Sora, perfect to live amongst your desk, three Kingdom Hearts pins/badges that you can wear to get into real cos-playing spirit. a 2003 calendar(yes, 2003, this is a collectors items, an antique I doubt you'll really wanting to be using the calendar and if you do the 2003 header is able to be torn off so you can just wait till 2017 when the calendar is applicable again) There's also a collection of stickers for you to post places showing your enthusiasm for Kingdom Hearts.
This is for the true Disney/Final Fantasy Kingdom hearts collector.