Available in the main game:
* Raikou: Found after defeating the Elite Four. You'll need to use the Radio Tower to track its location.
* Entei: Found after defeating the Elite Four. You'll need to use the Radio Tower to track its location.
* Suicune: Found after defeating the Elite Four. You'll need to use the Radio Tower to track its location.
* Lugia: Found on the Whirl Islands after defeating the Elite Four.
* Ho-Oh: Found on the Tin Tower (after completing the game once).
* Celebi: Found after you complete the game and save the world from the time distortion. Requires a special event, which involved a special ticket and was only available for a limited time.
Available via events (no longer possible to obtain):
* Mew: Found via a special event where you received a special password.
* Jirachi: Found via a special event.
Important Notes:
* Radio Tower: This is essential for finding Raikou, Entei, and Suicune. The tower broadcasts their location.
* Events: The events for Mew and Jirachi are no longer available. This means you can't obtain them in the original release of Pokémon Crystal.
Remember:
* All Legendary Pokémon are extremely powerful.
* Many require specific in-game conditions or event codes to find.
* This list reflects the original game release. If you're playing a modern version like the Virtual Console, there may be additional ways to obtain them.