Kingdom Hearts 2 considerably ups the combat possibilities of its predecessor, introducing new forms — and snazzy new suits — for Sora to wear. The addition of the Reaction Command in combat also spices battles up, making for a combat experience made even more varied by the addition of the new Nobodies enemies. By streamlining some of the first Kingdom Heart's systems, including magic and the awful Gummi Ship levels — not to mention deepening the lore to stranger, more engaging depths — the first numbered sequel in the 15 year old franchise is still one of its strongest and one of the most fun to play.
- Stitch (of Lilo & Stitch) was included as a character after a survey revealed Stitch as the second most beloved Disney character in Japan.
- The poem read at the end of the game is taken from the original trailer of the first Kingdom Hearts.
- Kingdom Hearts II sold over 727,000 copies during its first week in Japan.