1) complete game then go to the sky pillar and catch it at the top floor
2) trade for it with friends, family, etc.
3) hack
Yes, You can catch Groudon in Pokemon Emerald.
You can't catch one in Pokemon Emerald.
No you cannot catch Entei in Pokemon Emerald.
You can't catch a Bellsprot in Pokemon Emerald. You trade it from Pokemon Leafgreen!
There are many Pokemon you catch that are similar in sapphire and emerald but there are many Pokemon emerald can only get and not sapphire.
Cressilia is a 4th generation Pokemon so you can't catch it in Pokemon Emerald.
You can't catch or obtain other trainers Pokemon in emerald.
Umm... Trade from someone in Pokemon Ruby or Sapphire. In Ruby and Sapphire, you can find Meditite at Mt. Pyre. But, in Emerald, you have to trade it...
you cant. You can only catch it in Pokemon emerald, but, you cant catch latias in emerald.
No you cannot catch Celebi in Pokemon Emerald.
You can onl catch LUNATONE in SAPPHIRE but you can catch solrock in emerald
Weaken it to red hp, paralyze it then use many net balls or ultra balls.