well it kinda depends on the level and type but i would say if every Pokemon u had were level 100 i think either mewtwo or Blastoise
the best bird Pokemon on leaf green is pidgeot
the best Pokemon are on 1 2 and 3 islandsb
you cant trade Pokemon diamond pearl with leaf green. You can only do that if you trade Pokemon from leaf green to diamond pearl.
There is no town called Twinleaf Town in Pokemon Leaf Green, only in Pokemon Diamond and in Pokemon Pearl.
You must trade with Pokemon Leaf Green, or Pokemon Collosseum.
the best bird Pokemon on leaf green is pidgeot
the best electric Pokemon in leaf green is zapdos. u get it in the power plant.
on a bike
You can get Pollywhirl in Pokemon Leaf Green in Virdian City.
the best Pokemon are on 1 2 and 3 islandsb
The Pokemon you can get in fire red and not leaf green are Electabuzz and Scyther.
you can't get mamoswine in Pokemon leaf green because it doesn't exist in leaf green
Use a master ball.
there is no Pokemon green leaf and Pokemon leaf green you can't only diamond pearl platinum heartgold soulsilver and maybe black and white
behind the door is leaf green u enter the Pokemon leaf green world
No only Fire Red and Leaf Green and trade it from Pokemon fire red and leaf green
try fire red and leaf green packs