I don't understand the question.
well try playin' the perle or the diamond version
No. In Pokemon Emerald Version, you can only obtain Pokemon from generations 1, 2 and 3.
Shedinja.
For the GameShark you click on Pokemon Emerald 1 and choose the level then the pokemon.
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you can't get him on emerald ruby or Sapphire. you have to trade him from Pokemon leaf green or fire red to emerald. on Pokemon fire red and leaf green you get him at the end of island 1.
there is no BEST way to find him, everything is completely random.
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its not an emerald its RAYQUAZA the main legendary Pokemon in Pokemon emerald.
you get them by catching all 200 Pokemon
Only 1.