You have to defeat the Elite four and the Champion in the Pokémon league.
There is no Trainer Hill in Pokemon Ruby. Trainer Hill is only in Pokemon Emerald.
To play in trainer hill you have to defeat the elite four and then when you go there it will be unlocked.
The trainer hill is a zone in which you fight many different trainers. In Pokémon Ruby you can find the hill near Mauville City.
The trainer hill is by mauville city- you have to north of mauville and when you get to the grass patch- go right- -----you have to beat the elite four to use the hill
there is no such thing.
defeat the elite four
kill pokermans
To unlock Trainer Hill, you have to beat the elite four and the champion of hoenn and i think you have to have a frontier pass, which you have to get it from a receptionist at the battle frontier entrance.
Beat the Elite Four and get the National Pokedex
This true you will receive 6 Pokemon in a guy who own the trainer hill.He will give you an Charizard,Blastoise,Venasaur,Typlosion,Feraligator,andMeganium.Tha's all
just north of mauville or east of lavaridge. east of the winstrate families house
hell to the no. he's nothing at all