you need to trade bellsprout, vulpix, and sanshrew from leafgreen and you can get the rest in fire red.
Finish your Pokedex And Beat The Elite Four once then the second time they have stronger Pokemon
Squirtle is only obtainable if you chose it at the beginning of the game you must get one from another firered or leafgreen then give it to your firered and then you can finish your pokedex.
to finish the pokedex you have to see all the Pokemon in the wild
Deliver it to celio and now you can trade with sapphire or ruby version. To trade with emerald you need two wireless adapters. Also after that finish the pokedex oh and try the trainer tower.
You finish the Pokemon league and get the national pokedex You finish the Pokemon league and get the national pokedex
catch Dialga and Palkia this is incorrect, you finish the game when you have completed both pokedex + nationaldex.
Gives you a diploma for your hard work when you finish the pokedex.
finish your pokedex
You can get Pokemon from the older versions on Pokemon Platinum, but I'm not sure if it includes every Pokemon from every game. You'll need to finish your Pokedex, then get the National Dex.
finish of game xD if you completed the pokedex clear
You have to have national pokedex.
Cheatt