Go to tojo falls and swim for five minutes
They are hiding.. They will not appear until you quit playing..
as far as i am cocerned there is no frontier front in heartgold
you have to beat the frontier brains
The frontier brains are the heads of each battle facility in the battle frontier each of which are expert trainers if you ever reach them you can have the opportunity to win the frontier symbol from them. The frontier brains are: Brandon(Pyramid), Annabel(Tower), Lucy(Pike), Noland(Factory), Tucker(Dome), Spencer(Palace), Greta(Arena).
You defeat the Frontier Brains in each of the facilities in the Battle Frontier.
beat the frontier brains
To get to the frontier brains, you have to win through a certain number of rounds in a row (eg. 21 battles in the battle factory, 4 tournaments in battle dome)
No , not at all , some frontier brains have legendary with high stats and more powerfull Pokemon that of the Pokemon league
Battle frontier
Code
no
you have to do a certain thing at one of the places i think!