That shouldn't happen at all. You'll get Flash from him the first time that you talk to him. You don't really need Flash a lot, although it can be useful for dark caves.
u cant but u can buy it at veilstones city poke shop
Go on the old guys boat and go to Dewford. Go the the Granite cave and get the Flash from the hiker. Teach it to a Pokemon and wander around the cave until you find Steven.
Go to Dewford city. Go up and then left. There is a cave. Now enter the cave. There is a fat Hiker. Talk to him. He wont battle u. After pressing A button in front of Him he will speak and then give u HM5 Flash.
You Will Need flash! Get a Abra or pikachu for it, you can get through without flash (what i always do) just always save before a battle. there is a hiker at some point that talks about himself teaching his Pokemon good moves, well he is a challenge as he has a strong level 24 geodude knowing selfdestruct. A pain if you only have 1 Pokemon. You just need a Pokemon that can use megahorndon't even think about going through rock tunnel without flash. You always get lost and can't find the exit or find the way that you came in. That is why I always have a Pokemon that knows flash or dig. most preferribly a Abra or diglett
There are three Ruby Destiny games - please be specific. If you're meaning Ruby Destiny - Reign of Legends, then go to Pina Francia and go down the staircase into the shallow water area. Go into the cave and talk to the hiker guy. He should give you Flash.
the hiker is in mt.cornet
the hiker near the entrance of granite cave
Flash is in the Granite cave. Talk to the hiker guy as soon as you walk in the door. He should give it to you.
You can get the TM Flash from the Hiker in Granite Cave on Dewford Island. As soon as you walk into that cave there should be a man standing there (The Hiker) talk to him an he'll give it to you.
You get Flash from the Hiker in Oreburgh Gate. Alternatively, you can buy it in the department store over at Veilstone.
Go to Dewford city. In the cave, there should be a hiker right next to the entrance. Talk to him and he will give you Flash.
Upon entering the Dewford cave, there should be a hiker guy right by the entrance. Talk to him and he should share Flash with you.
go to dewford city and go into the cave near there there is a hiker inside talk to him after beating brawly the gym leader to get flash.
got to go through the cave in dewfird with flash from the fatty hiker
You get it from a hiker who runs into you.
If by Underground Caves you mean caves where you just have a small radius of light around you, then you talk to the Hiker in Dewford Town caves and get HM Flash from him. Beat the Dewford Town Gym Leader and teach Flash to a suitable Pokemon. When in these caves press the START button and activate your Pokemon team and right click the Pokemon you taught Flash to and activate Flash on the List 1. Talk to Dewford Town Caves Hiker 2. Beat Dewford Town Gym Leader 3. Teach Flash to Pokemon 4. Use in Dark Caves. Viola!
there's a reign of legends?- yes it is a ROM game and you get flash by going into the Francia Cave in the City of Pine Francia and talking to the hiker in there