Appendix:Pokémon Colosseum walkthrough/Key Item List
From Bulbapedia, the community-driven Pokémon encyclopedia.
| Name | Use | Location |
| Ein File C | Gives you information on Ein's Shadow Pokémon research | Relic Forest |
| Ein File F | Gives you information on Ein's Shadow Pokémon research | The Under TV Studio |
| Ein File H | Gives you information on Ein's Shadow Pokémon research | Cipher Hideout |
| Ein File P | Gives you information on Ein's Shadow Pokémon research | Pyrite Cave |
| Ein File S | Gives you information on Ein's Shadow Pokémon research | Pyrite Town |
| RED ID Badge | Opens the door to Realgam Tower | Realgam Tower from Miror B. |
| GRN ID Badge | Opens the door to Realgam Tower | Realgam Tower from Dakim |
| BLU ID Badge | Opens the door to Realgam Tower | Realgam Tower from Venus |
| YLW ID Badge | Opens the door to Realgam Tower | Realgam Tower from Ein |
| F-Disk | Moves the UFO Disk forward to the Colosseum and the elevator to the Construction Lot | Mt. Battle |
| R-Disk | Moves the UFO Disk right to The Under TV Studio. | The Under |
| U-Disk | Moves the UFO Disk up to the Pyrite Town Windmill. | Shadow Pokémon Lab |
| L-Disk | Moves the UFO Disk left to the Amulet Coin. | The Under |
| D-Disk | Moves the UFO Disk down to Deep Colosseum. | Snagem Hideout |
| Small Tablet | Activates the Relic Stone | Agate Village from Beluh |
| Jail Key | Unlocks Pyrite Town's Police Station's jail cells | Pyrite Town Police Station |
| Subway Key | Operates The Under's subway's train | The Under |
| Down St. Key | Unlocks the door in the basement of the Shadow Pokémon Lab | Shadow Pokémon Lab |
| Maingate Key | Opens the Shadow Pokémon Lab's maingate. | Shadow Pokémon Lab |
| Card Key | Opens the east wing of the Shadow Pokémon Lab. | Shadow Pokémon Lab |
| DNA Sample | A DNA Sample that will open the door at the end of the Shadow Pokémon Lab | Shadow Pokémon Lab |
| DNA Sample | A DNA Sample that will open the door at the end of the Shadow Pokémon Lab | Shadow Pokémon Lab |
| DNA Sample | A DNA Sample that will open the door at the end of the Shadow Pokémon Lab | Shadow Pokémon Lab |
| Cologne Case | Holds scents purchased by at the Agate Village Poké Mart. | Agate Village |
| Data ROM | Holds data about Shadow Pokémon. | Shadow Pokémon Lab |
| Powerup Part | Turns on the Kid's Grid Network. | The Under Junk Shop |
| Steel Teeth | A man in The Under's fake teeth. | The Under |
| Gear | The gear missing from the Pyrite Windmill. | Realgam Construction Lot |
