no unless you know how to hack
Answer 1: you cant only by tradeing or hacking stupids Answer2 : You can get Kyogre at Pokemon Sapphire (Cave of Origin) , Pokemon Emerald (Marine Cave) , and Pokemon HeartGold (Hidden Tower).
Legendary Pokemon are the best of the best you want to get: Regice, Regirock, Registeel, Kyogre, Latias, Rayquaza. This is the best possible team you can have without trading!
you do trade!
you can't
sorry, it's not possible to get kyogre in Pokemon ruby. you can only get it in sapphire of emerald
you can migrate him from emerald or sapphire.
Yes if you didn't save after you beat it.
There is no cheat to obtain Kyogre in Pokemon Ruby. To obtain Kyogre and Pokemon Ruby, one must trade with a trainer that has obtained Kyogre in Pokemon Sapphire or Emerald.
You can't get Kyogre in Pokemon Ruby but you can get Kyogre in Pokemon emerald and sapphire and in ruby you only get groudon and rayquaza. In sapphire you get Kyogre and rayquaza and in emerald you can get groudon, Kyogre, and Rayquaza.
you can`t catch kyogre or groudon or both of them without linking them from sapphire, ruby or emerald version.
You must trade it from a Pokemon game that has kyogre
There is no city called Kyogre he is a legendarie pokemon.