First go to six island
You must get ditto from emerald, firered or leafgreen because you can't catch it.
give 'em 2 ur migrating Pokemon from saphirre, leafgreen, firered, etc.
Unfortunatley, you cannot catch Mewtwo in Pokemon Ruby/Saphirre/Emerald. But you can trade it in from Firered/Leafgreen. Also, instead of asking on Answers for Pokemon questions, just go to Serebii.net
find them
There aren't any plates in Pokemon saphirre and ruby
Sorry but you can't realy get Kyogre on Pokemon Fire red. you can only get in Saphirre or Emerald.then you can trade it from Saphirre/Emerald to fire red
Level 22 or 24
impossible
Yes you can trade leafgreen version Pokemon to another leafgreen version.
Latias,latios,rayquaza.kyogre,groudon and blaziken good team in Pokemon saphirre
you need to migrate it off of Pokemon Ruby or Saphirre
Catch a Natu in the Safari Zone, and raise it to Lv. 25.