there is no ninth gym leader in any Pokemon game
there is no ninth gym. after the eight gym is the Pokemon league.
In G/S/C, the 9th gym is the first you battle when you reach Kanto's Vermillion City, the leader Lieutenant Surge.
It is not possible to get a ninth badge in Pokemon FireRed. You can only get eight badges in Pokemon FireRed.
migration im afraid
Go to the gym in Vermillion City in Kanto and battle Lt. Surge, the Gym Leader. He'll give you the 9th Gym Badge after you defeat him.
trade from Pokemon diamond/pear
there isn't one
you can get it at the trophy garden
if you mean pearl than Pokemon from sinnoh like starly and bidoof and if you do mean pear...! I HAVE NO IDEA WHAT THAT IS!
There is only eight gym leaders
After beating the Elite 4, Professor Elm will give you the S.S pass, which allows you aboard the S.S. You can go on it to go to Kanto which you can get your 9th badge
yes