that is only possible with a gameshark or a cheat.
Catch all the pokemon in the hoen dex. You may want to trade.
in the hoen ocean
Well you have to first get up to 10 Pokemon in your pokedex,next you will have to find entie you will find Entie in the hoen league,And then you have to back to profeser Oak and he will barrow you're Entie and the you leave it with him then go and do 3 circules in the grass and 1 startter Pokemon may show up.
pokedex or National
luvdisk
my pokedex said that there are only 139 Pokemon in the hoen pokedex.
Complete the hoen pokedex then talk to the prof.
Mew and mewtwo are part of the kanto pokedex not the hoenn pokedex but you do need these two to finish the entire pokedex.
hoen region and when you beat the elite for the national pokedex
that is only possible with a gameshark or a cheat.
croagunk
just fill in your sinnoh dex, speak to the prof., & youll get your national dex.your nationals are like a hoen dex coz you can import Pokemon from hoen, and theyll be in ur dex.
150 Pokemon for fire red and leaf green (not including legedaries or hoen and johto Pokemon)
national magikarp sinnoh croagunk
you have to migrate it from emerald after you completed the hoen pokedex, it's a reward from professor birch or get one by trading from a friend
You need to have the national pokedex, talk to Dawns sister a few times (she tells you were Pokemon that you can catch from hoen)