Yes.
Not in Pokemon leafgreen only in Pokemon Firered never ever in Pokemon leafgreen And in Pokemon firered it is rare in power plant not available in Pokemon leafgreen?
On Pokemon Pearl's title screen, if the Pokemon LeafGreen game is in the GBA slot, click on "Transfer From LeafGreen" and you can choose six Pokemon from LeafGreen to transfer to Pearl, but be careful-you can't trade them back.
You will only need to beat it if you want to transfer pokemon from the games Ruby, Sapphire, Emerald, Pokemon Colosseum and Pokemon XD Gale of Darkness. You can transfer pokemon immediately to another leafgreen or a firered version using either the GBA link cable or the Wireless Adapters.
Yes you can trade leafgreen version Pokemon to another leafgreen version.
No.
no
No, you have to transfer it from Pokemon XD: Gale of Darkness.
yes
you can't you need to transfer from firered or leafgreen
H
Pokemon colosseum is another Pokemon game.
gligar is another generation pokemon.