try beating red unless u done it if so then train your Pokemon to send them to black and white when they come out start a new game and get the experience twice ( but if u whant to keep Pokemon sned them to a diffrent game )
Get the national dex
after you get the national dex you can give it to a seadra and trade it to get a kingdra.
After you fill your whole dex and beat the E4.
Only after you obtain the National Dex and you trade one over from Ruby/Sapphire/Emerald.
Nope simply get the national dex and deliver the ruby and sapphire.
there is no national dex in Pokemon emerald. but, you can trade it from Pokemon leafgreen, and firered.
No
Get the national dex
The Sevii Islands(islands 4,5,6,7)
catch all of the Pokemon in the kanto region then go and see pro. oak and he will give you the National Dex
when you beat the elite four and have 100 Pokemon go to professor oak and he will give you and Gary the national dex
you can get the national dex from prof. birch after deafting the the elite four. then you can trade larvitar from leafgreen or firered. you can find larvitar in the seventh island in leafgreen/firered
you have to beat the elite four and have a national dex
Get the national dex and beat the elite 4.
after you get the national dex you can give it to a seadra and trade it to get a kingdra.
After you fill your whole dex and beat the E4.
You have to have chosen Charmander as your starter, then it appears randomly when you have the national dex.