In what?
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.
Unlocked by completingSunset Hill (Zone 2), Act 3 with Sonic as team leader.
I heard a rumor that you have to acquire all 180 Emblems to earn the special stage. I myself am not attempting that kind of feat.
Wapiti(elk) Warbler(song bird) Wyvern(a mythical creature)
You must get all of the friend areas from missions.
wyvern hill
Wyvern Hill.
HM Fly is located behind a locked door on the 30th floor of the dungeon Wyvern Hill. Wyvern Hill will be unlocked after obtaining the friend area Dragon Cave from a mission.
floor 20 of wyvern hill, you'll need a key to get it.
30
When you have beaten Entei Suicune Raikou and Ho-oh the mirage Pokemon you randomly get lots of places to go to including Wyvern Hill.
you can get HM fly in wyvern hill on 30f
You have to beat rayquaza and then you automatically get it
HM Fly is obtained on the 30th floor of Wyvern Hill. A Key is needed to unlock its case. Wyvern Hill is an unlockable dungeon that is activated when you receive Dragon Cave as a Friend Area. Although this Friend Area is obtained through completing a mission, put in the following Wonder Mail code and the corresponding mission will be put in your mail: H?08 ?9S? ?Q64 ?P?! 84S0 +F?! you are the best!!!!!!!!!!!!!!!!! that's all i need
u get it at wyvern hill
It's a dungeon close to Buried Relic, Wyvern Hill and Darknight Relic.