go to a tall building that has a lot of things you can buy
Yes you can trade leafgreen version Pokemon to another leafgreen version.
An HP UP increases the maximum number of HP (hitpoints) a Pokemon has. This allows it to absorb more damage from attacks before it faints.
You level it up to lvl 36.
You can't. You can only find a PP Up
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.
Level them up, Use items on them like Protein, Full Restore, Iron, Carbos, Hp up, Calcium, PP up, Zinc, have them hold soothe bell in battle.
you train them!!!
Level them up.
Yes you can trade leafgreen version Pokemon to another leafgreen version.
up your bum
An HP UP increases the maximum number of HP (hitpoints) a Pokemon has. This allows it to absorb more damage from attacks before it faints.
Weaken it to red HP, paralyze it or make it sleep then use many ultra balls.
If you trade Pokemon between leafgreen and ruby ruby will have your leafgreen Pokemon and leafgreen will have the ruby Pokemon both in the party they will not be sent to the PC unless you personally walk to the PC and do so.
beat a trainer and search the Pokemon up in your Pokedex
The item Hp Up if used on a Pokemon will increase the maximum amount of health that Pokemon has currently so lets say your Pokemon has 20 HP use the Hp Up on it and now it may have up to 22 HP and this isn't temporary once you use the item it's Hp will remain 22 until of course you level it up or use another Hp Up.
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?
It evolves porygon to porygon2