Kingdom Hearts 358/2 Days is a role-playing game developed by h.a.n.d. and released on Nintendo DS.

Kingdom Hearts RE: Chain of Memories was developed by Square Enix for the PlayStation 2. It is a rerelease of the original Chain of Memories for the Nintendo DS and the game falls between Kingdom Hearts and Kingdom Hearts II and explains why Sora has lost his memory. It makes use of a card system for combat where you must collect cards to make actions.