Unfortunately, there's no way to continue playing the game itself after the credits roll. The game was designed to end there.
However, you can still enjoy the game further in these ways:
* Start a New Game: You can always start a new game with a different team, play through the story again, and try different strategies.
* Try a Different Difficulty: You can play on a harder difficulty (like "Set" or "Hard") to make the game more challenging.
* Explore the Post-Game: While there's no new story content after the credits, you can still catch all the remaining Pokémon, complete the Pokédex, or even try to catch all the legendary Pokémon.
* Mods: There are many fan-made mods available that can add new content, features, and even challenges to the game. These mods can extend your gameplay significantly.
To find mods:
* Search online: Websites like Pokemon.com, Bulbapedia, or other Pokémon fan communities will likely have links to downloadable mods.
* Use ROM hacking tools: Tools like "Pokémon Insurgence" or "Pokémon Uranium" allow you to modify the game and add new content.
Remember:
* Always download mods from reputable sources. This helps to ensure you are not getting malware or viruses.
* Back up your game files before installing any mods. This way, if a mod causes problems, you can revert to your original save.
Have fun exploring the world of Pokémon FireRed and finding new ways to enjoy the game!