You can only get one. If you use the action replay, though, then you can either use the wild modifier code or catch trainer Pokemon code to get all three of them.
It is not possible to get all three starters in Pokemon LeafGreen without trading. This was an intended mechanic to encourage interaction between players.
You don't not unless you trade or cheat
There's only one way to get all 3 starters in Pokemon HeartGold/SoulSilver, but you will need to have 2 DS's and 2 games. You start with a Pokemon and trade it on your other game on your other DS. You start a new game and then do the same with your other 2 and then trade them back. You then have all 3 starters.
By trading the other starters with other players of Diamond or Pearl.
with an AR
To obtain all three starters you need to trade with someone.
After you defeat red, Prof. Oak gives you ONE of the starters, but you cant catch the starters nor get all of them at once
all the previous starters, you get to pick one from each new edition... or at least that's what I've heard. sorry if I'm wrong X(
All those pokemon would need to be migrated to Heartgold/Soulsilver.
It is impossible unless you hack
No. But you can trade and get all three starters. N&L
Get a friend to trade them to you.
i would say yellow because you get all three starters.
Yes you get starters on all Pokemon games.
i am sure you can see them but not catch them
For the Johto starters, you get them at the very beginning of the game. As for the Kanto starters, one of the three (your choice) can be obtained from Professor Oak after obtaining all 16 badges.