The Organization XIII Replica Data are digital replicas of Organization XIII’s members, minus Xion, who appear as optional bosses in Kingdom Hearts II Final Mix. The Replica Data dwell in the Garden of Assemblage at the end of the Cavern of Remembrance in Radiant Garden. To navigate the entire cavern, Sora will require the Growth Abilities from his Valor, Wisdom, Master, and Final Drive Forms, all of which must be at least Level 3. This means that Sora must reach The World That Never Was and defeat Roxas at Memory's Skyscraper before he can reach the Garden.
Access[]
Once the player reaches the Garden of Assemblage and activates the computer within, they will be able to fight against replicas of Xaldin, Axel, and Demyx. Once the player completes the game, they will also be able to fight the replicas of Xemnas, Xigbar, Saïx, Luxord, and Roxas. In order to unlock the replicas of Vexen, Lexaeus, Zexion, Marluxia, and Larxene, the player must defeat their Absent Silhouettes; they can do this either before or after clearing the game.
The data replicas are much, much stronger than the original members: They possess a higher damage output, increased HP, and all of them have different attack patterns and properties so as to force the player to relearn strategies, making them the hardest opponents in the game besides the Lingering Will. The player can rematch them as many times as they desire, and defeating each yields its own reward, but Sora gains no experience from fighting them. The terminals that hold the data of each individual member glow blue at first, but turn red once the player defeats the member within for the first time. After Sora defeats all thirteen replicas, a treasure chest will appear beside the computer, which holds the Proof of Nonexistence.
Data bossfights[]
| Boss | Arena | Notes | Drops |
|---|---|---|---|
| I Xemnas | Memory's Contortion (Castle That Never Was) | Sora's equipment, items, and abilities can be reconfigured between the two rounds. While Donald and Goofy are not available as allies, Riku joins the party at the second battle. | Power Boost |
| II Xigbar | Hall of Empty Melodies (The World That Never Was) | Defense Boost | |
| III Xaldin | Bridge (Beast's Castle) | Donald and Goofy are available as allies, but the Beast is not. | Defense Boost |
| IV Vexen | 11th Floor (The Old Mansion) | Lost Illusion | |
| V Lexaeus | Station of Rememberance (Castle Oblivion) | Lost Illusion | |
| VI Zexion | Seashore (Castle Oblivion 3rd Basement) | Lost Illusion | |
| VII Saïx | Addled Impasse (The World That Never Was) | Defense Boost | |
| VIII Axel | Basement (The Old Mansion) | Donald, Goofy, and Roxas are not available as allies. | Magic Boost |
| IX Demyx | Castle Gate (Radiant Garden) | AP Boost | |
| X Luxord | Havoc's Divide (The World That Never Was) | Donald and Goofy are not available as allies. | AP Boost |
| XI Marluxia | Station of Oblivion (Castle Oblivion) | Lost Illusion | |
| XII Larxene | Station of Rememberance (Castle Oblivion) | Lost Illusion | |
| XIII Roxas | Station of Awakening (Dive to the Heart) | Donald and Goofy are not available as allies. | Magic Boost |
- Xemnas' Replica Data is fought at Memory's Contortion and the final arena, and relinquishes a Power Boost. Sora's equipment, items, and abilities can be reconfigured between the two rounds. While Donald and Goofy are not available as allies, Riku joins the party at the second battle.
- Xigbar's Replica Data is fought at the Hall of Empty Melodies, and relinquishes a Defense Boost.
- Xaldin's Replica Data is fought at the Bridge, and relinquishes a Defense Boost. Donald and Goofy are available as allies, but the Beast is not.
- Vexen's Replica Data is fought at the 11th Floor facsimile of The Old Mansion, and relinquishes a Lost Illusion.
- Lexaeus' Replica Data is fought at the Station of Remembrance, and relinquishes a Lost Illusion.
- Zexion's Replica Data is fought at the 3rd Basement facsimile of the Seashore, and relinquishes a Lost Illusion.
- Saïx's Replica Data is fought at the Addled Impasse, and relinquishes a Defense Boost.
- Axel's Replica Data is fought at the Basement, and relinquishes a Magic Boost. Donald, Goofy, and Roxas are not available as allies.
- Demyx's Replica Data is fought at the Castle Gate, and relinquishes an AP Boost.
- Luxord's Replica Data is fought at the Havoc's Divide, and relinquishes an AP Boost. Donald and Goofy are not available as allies.
- Marluxia's Replica Data is fought at the Station of Oblivion, and relinquishes a Lost Illusion.
- Larxene's Replica Data is fought at the Station of Remembrance, and relinquishes a Lost Illusion.
- Roxas' Replica Data is fought at the Station of Awakening, and relinquishes a Magic Boost. Donald and Goofy are not available as allies.