you can't go to rustburo city in heart gold because rustburo city is in the hoenn region and you can only go to the johto and kanto regions in heart gold. sorry:(
in rustboro city
The Flower Shop is south of Rustboro city
In rustboro city.
There is no Devon Corporation in Pokemon diamond. However, there is on Pokemon ruby,sapphire and emerald. It's in Rustboro City.
Timer balls are sold in the rustboro city pokemart.
it is in rustboro city near Pokemon center
the biggest building in Rustboro city. it is in the west of the city
go in rustboro city pokemart
Rustboro city
in the cutter house in rustboro city
house next to the Pokemon center
Go east of rustboro city.