I can help あなた there first download PCSX2 1.4.0 Standalone Installer - 1.4.0 :
link then download the PS2 BIOS Files:
link now this Emulator is for the PS2 Versions. あなた can get Kingdom Hearts 1:
link)/150757 あなた can get Kingdom Hearts Re:Chain of Memories:
link)/150357 あなた can get Kingdom Hearts 2:
link)/150356 There are tutorials on how to set up the Emulator on YouTube. Hope this helps.