Kingdom Hearts: Chain of Memories offers a unique and surprisingly deep card-based battle system that departs boldly from the action RPG style of the original Kingdom Hearts. While the story may feel like filler between major titles, the gameplay innovates, using cards for attacks, movement, and even room generation. The GBA limitations lead to some repetition, but if you're into strategic deck-building or a Kingdom Hearts fanatic, Chain of Memories is absolutely worth exploring.