Electrode
You have to catch one in emerald after the elite four in Pokemon emerald and you have to trade the other lati from Pokemon sapphire or ruby.
you must either defeat the elite four or trade a Pokemon that is in any other pokedex's from any other game
well none of the games are longer there both the same. Pokemon emerald is the same as Pokemon firered.rayquaza says: well i realy think Pokemon Firered is longer for some reasosns... Firered is definetly longer cause you have to save lostle and some other stuff on the islands and every Pokemon in the elite four is about 10 levels higher then emerald's elite four.
You can import Pokémon from emerald to Sinnoh. First you must beat the elite four and complete the Sinnoh Pokedex.
no u dont
You can't possibly find all the Pokemon in emerald there are some you can't get like surskit. you can get most of the the hoenn Pokemon in emerald and some of the johto and kanto. But other than that you will need to trade the Pokemon over to you're current game.
On Emerald, a brand new section opens in which you can catch Pokemon such as marrep, sunkern, houndoor, and other Pokemon from that generation.
VERY DEEP in meteor falls you will fight him
The answer to that is the Fight Area. Just like almost any other Pokemon game like Diamond and Pearl.
you do the other gyms and the elite 4
You can't catch or obtain other trainers Pokemon in emerald.
the top 6 pokemon that you should have are blazican sceptile swompurt aggron alakazam and salamence. To aquire these pokemon you need to do some trading with freinds to get the other starters.