Action-RPG that bridges the first Kingdom Hearts and its sequel through a card-based combat system. You navigate Castle Oblivion, a structure that erases memories as you ascend its floors. Combat ditches real-time button mashing for deck-building—you assemble cards representing attacks, magic, and items, then play them in sequence during battles. Each floor recreates a world from the original game using cards formed from your character's fading memories. These worlds pull from Disney films and original locations. The castle's flower-decorated lobbies contrast with the varied environments you unlock. Memory loss drives the plot: characters forget key events as they climb higher. Jupiter developed this for Game Boy Advance, making it the series' first handheld entry. Fans wanting story between numbered entries get answers here, though the card mechanics polarize players used to Kingdom Hearts' standard combat.
