Things You'll Need
Instructions
Load either "Pokemon FireRed" or "Pokemon LeafGreen" on one of the Game Boy Advances. Start a new game and choose Charmander as your first Pokemon. Save your game and turn the power off.
Connect your game link cable to both Game Boy Advances. Turn the Game Boy Advances on and load your saved game in "Pokemon Sapphire" and "Pokemon FireRed" or "Pokemon LeafGreen."
Travel to the Pokemon Center in both games. Head up the stairs in the Pokemon Center to enter the trading area.
Select Charmander in the trade options. Agree to the terms in both games for the trade to go through and acquire Charmander.