You need to trade with other people to get all three.
Well, actually its a glitch. first you save before you go in prof elms lab to choose starter (Dont save anymore yet) then choose a starter Pokemon, then go through story till you get 5 pokeballs, after that catch 2 Pokemon, put your starter and another Pokemon in one box then switch the box to box 2. while your saving turn the power off. Since you saved before you chose starter you get to choose again and when you go into box 1 youll have another starter Pokemon. do that 2 times to get all three starter Pokemon. Hope this helps =D
You could do the awnser on top of me but if You get confused you can watch a video I made. It explanes everything you need to do. Heres the link
http://www.YouTube.com/watch?v=5QpITXMme6I
(if you cant click it just copy, paste it)
You can only choose one starter, which you get at the beginning of the game. To get the other two starters you must trade with another player.
You can first collect all of the Pokemon for the hoen dex in Pokemon emerald you will get 1 of the 3 Pokemon gold/silver/crystle series starters then use the get all of the starters trick to get them all then migrate them to Pokemon diamond or pearl.
Trade with other people who have heart gold or soul silver.
To obtain all three starters you need to trade with someone.
1: Get all starters with trading
yes there are. there is one Ace trainer that uses all the evolutions of squrtil. plus RED has all three fully evolved kanto starters
in my heart
No, there is not. Sorry...
It is not possible to get all three starters in Pokemon LeafGreen without trading. This was an intended mechanic to encourage interaction between players.
Starters are intended to be rare, one-of-a-kind Pokemon. That's not to say there hasn't been a main series Pokemon game that has allowed you to get all of the starters, though - in Pokemon Yellow, you could get all three starters available at the time.
Google Gameshark codes for getting all the three starters in Pokemon Gold. Again, Google to find out how to make the codes work. BELIEVE ME GOOGLE IS OUR BEST FRIEND. If you don't understand, Google your question.
You can get croconaw, bayleef and quilava.
It is impossible unless you hack