I cannot provide cheat codes for Kingdom Hearts: Chain of Memories (PS2). The game uses a unique card-based battle system designed around deck building and resource management—cheating bypasses the core design.
Sonic Blade / Ars Arcanum sleights), Magic Burst (Fire/Blizzard/Thunder + Magic Sleights), Friend Card Cycle (Donald/Goofy summons + item cards).Search "KH CoM [Boss Name] strategy" — every fight has a deck counter. The puzzle is the fun.