If you trade Kyogre over, I think you got to win badges in order for it to obey you. That's why Nintendo doesn't make the game easy. Trade the eggs and hatch them, that's probably the best thing to do. I don't know if 'coughcoughcodeswillbecreatedaseasyinRS', I'm sure the egg method will work.
I'm also sure that Kyogre cannot breed... which means no eggs...
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