However, you can obtain a "Secret Key" in FireRed. This key is used to unlock the "Secret Base" feature, which allows you to customize your own hidden base and battle other players.
To obtain the Secret Key:
1. Complete the main story: Beat the Elite Four and become the Pokémon League Champion.
2. Visit the Pokémon Fan Club in Vermilion City: Talk to the person standing near the back of the building.
3. Answer the "Pokémon Trivia" correctly: The questions are about basic Pokémon knowledge.
4. Receive the Secret Key: Once you answer all the questions correctly, you'll receive the Secret Key.
With the Secret Key, you can:
* Find Secret Bases: Explore the world and look for glowing spots on the ground. These spots indicate the locations of Secret Bases.
* Customize your Secret Base: Decorate your base with furniture, wallpaper, music, and Pokémon statues.
* Battle other players: Invite other trainers to your Secret Base for a battle.
While the Secret Key doesn't have the same functionality as a Mystic Ticket, it provides a similar experience of customization and competitive battles.