Card Key is an item in the “Plot advancement” category (Key Items).
In-game descriptions
| Emerald | A card-type door key used in SILPH CO’s office. |
|---|---|
| FireRed / LeafGreen | A card-type key that unlocks doors in SILPH CO.’s HEAD OFFICE in SAFFRON CITY. |
| HeartGold / SoulSilver · Black / White · Black 2 / White 2 · X / Y · Sun / Moon · Ultra Sun / Ultra Moon · Let’s Go, Pikachu! / Let’s Go, Eevee! · Sword / Shield | A card key that opens a shutter in the Radio Tower. |
Where to find it
| Place | Games | How | Tile |
|---|---|---|---|
| Silph Co — 5F | FRLG | on the ground | 22, 21 |
Sources : PokeAPI (items, item_flavor_text, machines) · atlas · pokeemerald species_info.h