Just keep training your Pokemon with patience. I don't have that much patience, so my Pokemon in Leaf Green never got past Level 50
well the way to have lv100 Pokemon without AR is simple....... RASIE IT!
level them up on your own and slowly
darkrai lv 100,giratina lv100,palkia lv100,heatran lv100,creselia lv100 and salamence lv100.
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.
firered and leafgreen version
There is no "Pal Park" in Pokemon Firered Version.
Get it from Pokemon emerald.
No, Pokemon FireRed version is for GBA.
The emerald doesn't exist in firered.
On Cinnabar Island
mt. ember