It's a Red Scale and after you catch the Red Gyrados a message pops up saying you have found the Red Svale.
defeat red gyarados.
you get it after catching or defeating red gyarados
after you beat or catch the red gyarados he will drop a red scale
in dragon pokemon like bagon,gyarados or using thief
It is nothing but a scale from the red gyarados. It has not one special ability or thing about it. ( just reminds you of the time you caught the red gyarados )
I believe you have to look for Red Gyarados for a Red Scale.
You have to catch or defeat the red GYARADOS
get the dragon scale from the red gyarados and give it to mr. Pokemon or, get three matching numbers in the Pokemon lotto in the goldenrod radio tower.
Obtain the "Red Scale" from the Red Gyarados and take it to Mr. Pokemon. (the man you receive the Mystery Egg from at the beginning of the game)After you beat or catched the red gyarados, you get a red scale. You can trade it for a exp share by Mr pokemon!
Go to the lake of rage and catch or deafeat red gyarados and you will automatacly get the dragon scale^ That's a Red Scale. Trade it to Mr. Pokemon for the exp. share. The Dragon Scale can be found in Blackthorn City after defeating Claire.Capture a dragon type pokémon or receive the drantini in that cave near the dragon gym.You find it in Mt. Mortar in the Johto region. You need to have surf and waterfall available and you find it in the area where a school boy has a level 30-40 Seadra.
Talk to Mr.Pokemon after you get a red scale from the red gyarados
Kill or capture the red Gyarados at the Lake of Rage.