If you have already beaten the elite four and have Latios or Latias already roming around in emerald then you can chase it down till you are in the same vicinity as it and go into the grass to see it appear. toss a master ball at it and you will have the latios or latias. Of course it's best that you clone the master ball first so that you can catch the other one the same way.
Trade from Sapphire/Emerald.
Yes, it is
chaeat
yes
then it's gone forever
You can find Latios on Pokemon Emerald, Ruby, and SoulSilver.
Latios can be traded to Colosseum from Ruby, or Emerald.
No, you can only get Latias in Sapphire and Emerald and Latios in Ruby and Emerald.
No legendary Pokemon even latios and latias can have eggs.
in the pokedex
It is possible, but you can't catch them both on 1 Pokemon game. If you have Pokemon Emerald, Ruby and or Sapphire. Then you can get them both. For example: Someone trade Latios and you have Latias, trade an another Pokemon for Latios and you have them both.
Latios is not catchable in Sapphire you must get one from Ruby or Emerald.
40 (:
Trade from Sapphire/Emerald.
Yes, it is
chaeat
yes