You can't get another one,not that you need one.Flash is an HM in emerald, which means you can't lose it or sell it.
The Flash of an Emerald - 1915 was released on: USA: 27 September 1915
You can't its not a move in emerald.
the hiker in granite cave
HM 05 is flash
Flash is actually an HM in emerald but anyways to get it you will need to enter Granite Cave you can find the cave near Dewford Town inside the cave when you first enter you will notice a Hiker speak to him to receive the HM Flash.
go to the battle frontier and a person will give it to you
You get it in the Granite Cave in Dewford Town.
In Emerald there are cave in which you get them. I THINK you need dig dive and flash.
There are a large range of Pokémon which are capable of learning the move Flash. For example, Pikachu is capable.
you win them from gyms
No...You have to have the TM for any Pokemon to learn it...
Gamebody Advance by Nintendo only. There are some modded versions out that are for a few other consoles, but It's definitely not a flash game.