To play the true game online is impossible. But if you want to play it for free on your computer, there is a way.
First, you must download the VISUALBOY ADVANCE. Then, look on the key-words : Pokemon leafgreen ROM. Most likely you will get a .rar or .zip file. Do not open them. Open the visualboy advance and click "Open gameboy" or just "open..." Look up your ROM and click it. There you go, leafgreen on your PC. I hope it helped.
You have to transfer it into Pokemon Black or White, or you can also trade for it.
If you have Pokemon White Virsion then you can in white forest, if you have Pokemon Black Virsion then you must trade it from Pokemon White
You can't trade Pokemon olny put Pokemon in Pokemon white and black's pal park and you can't return it back.
with Internet connection
i think you trade it from pokemon white
you can trade Pokemon from white to black and from black to white
Trade from white and if you have white trade from black for tornadous
Lord N never releases it so if you want Zekrom either buy pokemon white and trade it to pokemon black or trade with somebody online.
You have to transfer it into Pokemon Black or White, or you can also trade for it.
Zekrom is NOT in Pokemon Black. You have to trade it from Pokemon White.
Pokemon White, and other copies of Pokemon Black.
If you have Pokemon White Virsion then you can in white forest, if you have Pokemon Black Virsion then you must trade it from Pokemon White
You have to trade a starter to another Pokemon white or black game then trade the Pokemon back.
You can trade the DS Pokemon games onto Pokemon Black and White when you have the national pokedex and have found sort of the pal park in black and white.
After the first badge. But White will only be able to trade to Black or White.
You can't trade Pokemon olny put Pokemon in Pokemon white and black's pal park and you can't return it back.
with Internet connection