She uses Dragon-type Pokemon, so use a lot of Dragon, Steel, and Ice-type moves. Electric-type moves will murder her Gyarados and Kingdra. :)
use a dark type Pokemon or attack(shadow ball is the best)
With Pokemon.
All you have to do is beat the Rocket Leader...whoever it is ...I can't remember
beat the elite four and then you can go to the kanto region and you have to beat Brock, then get though Mount Moon to get to Cerulean city
Pikachu
I don't have heart gold but its Vermilloin city next gym leader is Lt.Surge he has electric Pokemon No,Brock is next,ok?
go to prefacer.oke then you get one stear pokemon
You need to beat a certain gym leader before using any hm
You finish Pokemon heart gold after you beat red.
beat the Pokemon luegue then go to the Pokemon centre
beat 5th gym leader then talk to his wife
You will need to teach your pokémon "cut."