You need to own at least 60 Pokemon for Oak to give you the National Dex. Get the ruby and give it to Celio. Once you give Celio the Ruby he will give you a rainbow pass so you can go to all islands. Give him the Sapphire and you can go to Cerulean Cave, where you catch Mewtwo. Also, you can trade pokémon to emerald, ruby and sapphire versions.
-The Dreamer
Unknown Dungeon was the name of a cave in Red, Blue and Yellow version that is located northwest of Cerulean City you would need Surf to reach their the cave is now called Cerulean Cave.
Chinchou is not available in Pokemon Firered Version. You can only get it by trading from Pokemon Ruby / Sapphire / Emerald Version.
use that gameshark user.
There is no "Pal Park" in Pokemon Firered Version.
firered and leafgreen version
Get it from Pokemon emerald.
The emerald doesn't exist in firered.
No, Pokemon FireRed version is for GBA.
Misty is at the Cerulean Cape. It's close to Cerulean City.
mt. ember
On Cinnabar Island
It is red and it says Pokemon FireRed version or something like that.