You go to the cave in dewford town
and its the first Hiker in there.
You get Hm flash from the hiker in granite cave in dewford.BEWARE!You can only use flash if you get the knuckle badge from Brawly
flash isn't a HM it is a TM
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.
In all five generation, there has never been an HM 09. You can't get it. The only HMs in Generation III (Ruby, Sapphire, Emerald, Fire Red, Leaf Green) are: Hoenn CutFly Surf Strength Flash Rock Smash Dive Kanto Cut Fly Surf Strength Flash Rock Smash Waterfall
There is no such HM available.
It's pretty easy. All you need to do is get the HM Flash. If you don't have it, then it will be hard getting through in that cave :)
Look at "How do you get hm flash in blue?" On this site.
hm 05 you sped
HM 05 is flash
flash
Hm05
you cant