The cartridge that turned forgetting into the gameplay itself.
Square Enix took its glossy PS2 action-RPG and shrank it onto a Game Boy Advance cartridge in 2004 — but instead of swinging the Keyblade in real time, you fight by building and stocking a deck of cards, stacking two or three to unleash 'sleights.' The story is just as strange and just as brave: Sora climbs Castle Oblivion, and every floor he ascends, the deeper his memories are quietly stripped away and rewritten. It's a game that knows it sits in the gap between Kingdom Hearts and Kingdom Hearts II, and it makes that gap the whole point. You finish it having watched a hero forget — so that he can remember.
About this game
Kingdom Hearts: Chain of Memories is a 2004 action rpg for the game boy advance, developed by Jupiter.
Gallery
The Story Behind
Square Enix asked director Tetsuya Nomura to create a Kingdom Hearts title for the Game Boy Advance after hearing that children wanted to play Kingdom Hearts on a handheld. Jupiter handled the development and programming based on specifications from Nomura's team, releasing the game in Japan on November 11, 2004. It was one of the first GBA games to incorporate full-motion video, using cutscenes rendered with the PlayStation 2 engine and encoded for the GBA. The game introduced Organization XIII to the series — members Marluxia, Axel, Larxene, and Vexen appeared in Sora's story, while Zexion and Lexaeus appeared in the unlockable Reverse/Rebirth campaign playing as Riku.
Tricks & Tales
Despite being a Kingdom Hearts game, combat abandons real-time action for a deck-builder: you assemble a deck (up to 99 cards, limited by Card Points), and stocking two or three cards together triggers special 'sleights.' This is where Organization XIII makes its very first appearance in the series — the hooded villains who would haunt every later Kingdom Hearts game debut here on the GBA. Chronologically it threads the needle between the two console games: its ending is set roughly a year before Kingdom Hearts II, deliberately built as the bridge fans needed to understand how the story continued.
Collector's Guide
Region & Compatibility
Unlike the region-locked PlayStation 2, the Game Boy Advance is region-free: a Japanese cartridge plays on a North American or European unit and the reverse, which makes importing simple and is part of why Japanese collectors and overseas buyers meet so easily here. There are small caveats — linking Pokémon games of different languages can misbehave, and the China-only iQue variant is its own case. On power, the original AGB-001 runs on two AA batteries, while the SP and Micro carry built-in rechargeable batteries; there is no mains-voltage worry of the kind that affects a Japanese home console abroad.
Maintenance Tips
The original AGB-001's defining limitation is its unlit screen; many surviving units have been fitted with aftermarket backlit displays, and a modded screen is a genuine value-add rather than a fault. On the folding SP, the most common age problem is the hinge — the plastic around it grows brittle and can crack, though replacement shells fix it. The SP and Micro both use internal rechargeable batteries that weaken with age and can be replaced. Cartridge contacts oxidise like any Game Boy's and clean with a cotton swab and high-strength (91%+) isopropyl alcohol. One save-data note: most Advance games save to battery-free flash memory, but a few titles (such as Pokémon Pinball Ruby & Sapphire) use a small internal battery that, after two decades, may now be failing.
What to Watch Out For
Before buying, these are the points worth knowing — from someone who handles original Japanese Kingdom Hearts: Chain of Memories copies regularly.
Is this the same kind of action game as the PlayStation 2 Kingdom Hearts?
No — and this surprises people. The story and worlds are Kingdom Hearts, but the combat is a card-based deck-builder, not real-time action. Critics praised the story but the card system divided players, so check a clip first if you specifically wanted PS2-style action.
Do I need to have played the first Kingdom Hearts to follow this?
It helps a lot. Chain of Memories is a direct sequel to the first game and a bridge to Kingdom Hearts II, so it assumes you know Sora's story. Playing it cold, the memory-loss plot will land far less.
Is this the original GBA version or the later PS2 remake?
The 2004 Game Boy Advance cartridge is the original. A fully 3D remake, Re:Chain of Memories, was later released on PlayStation 2 and in HD collections. If you want the authentic GBA artifact, confirm the cartridge.
Unexpected Discoveries
Games you weren't looking for — but might be glad you found.
Rooms this game lives in
Wander deeper — explore the themed rooms where Kingdom Hearts: Chain of Memories sits alongside its kin.
Memories from around the world
This is a young museum, and this page is still waiting for its first voices. The memories people send reach Taisei personally, and the ones that move him find a home here over time — always with the writer's blessing. Yours could be the very first for this game.
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