My happy NB team

[DayDreamer]

If he can even find it. The only way to get Hidden Power now is through pick up, and the chance of it being ghost is 1 in about 16 different types, whcih gives him a 6.25% chance of getting that particular type of Hidden Power. He'll have to just keep teaching it and using it until it does the right thing.

You can buy hidden power in ruby/sapphire and then trade it accross to firered/leafgreen. Besides... Breloom can only be obtained in ruby/sapphire anyways.

 

[Demonion]

And its for netbattle so hidden power ghost is as easy as a mouse click :)

 

[Mana Lugia]

... Hidden power's type and power depends on your genes, and iirc there's only 1 way to get a 70 power Ghost HP, which gives you 1 in (32 ^ 5 ) chances to get that coveted HP ghost (Although I guess 65 or higher are decent powered HPs).