You win them after defeating the various Frontier Brains. You will be able to challenge them after you complete their challenge or will have won 21 or 35 matches in a row.
yes
you have to get these symbols it's fun but hard
If you speak to Scott (the manager of the Battle Frontier) he will reward you with exclusive Berries.
No i dont think so
I belive you get bulbasaur in emerald when you obtain all the frontier symbols you talk to Scott and he will give you your choise of charmander, bulbasaur or squrtle
Your Trainer Card will change color.
Gold Shield (Decoration) Win 100 Battles Lansat Berry Obtain all Silver Frontier Symbols Silver Shield (Decoration) Win 50 Battles Starf Berry Obtain all Gold Frontier Symbols
Talk to Scott to receive a special berry.
Better is pokemon emerald.you can catch more pokemon-you can catch kyogre and groudon-you can battle with the frontier brains and collect the seven symbols in battle frontier
Not badges: symbols. Each frontier facility is home of a frontier brain if you beat them you earn the facility symbol you can rematch them for a gold version collect them all for a secret prize given by Scott.
You can get the starf berry by talking to Scott after you earn all gold symbols (which is very VERY hard) from The Battle frontier.
if you fully beat it (all 7 gold symbols) and talk to scott he will give you a starf berry