It Is a Shiny Gyardos if you want it red
... you cant that was just in the show
To get a red Gyarados in Pokemon LeafGreen you first need to catch a shiny Magikarp. This shiny Magikarp will be able to evolve into a red Gyarados. This is due to the red Gyarados simply being the shiny color of Gyarados.
Red gyarados is actually a shiny pokemon so you would have to catch a shiny magicarp and evolve it in a shiny gyarados (meaning a Red gyarados)
technically, yes but it is not a red gyarados it is a shiny one and it is random, you can hunt it but the chances of a shiny are 1/8192 so...... good luck
A red gyarados is a shiny gyarados (however, the Pokemon Company did not call them shiny untill the Unova Region). You can find it wherever you can find a normal gyarados, but your chances to find it are very slim.
Well, yes and no. You can find a shiny magikarp that will evolve into Red Gyaraddos at LV.21. You can't actually find any gyarados without codes. The red gyarados is shiny gyarados. There is a 1/3492 chance of finding shiny gyarados.
No, Gyarados and red Gyarados are basically the same having only one key difference; red Gyarados is a "shiny" Pokemon which changes its color and makes it rare to find in normal gameplay.
Actually, you just look at your pokedex and see where a Wild Gyarados (not shiny) is and just fish with a super rod there. The chance of getting one is 1/8742...
Gyarados
In Pokemon Silver you can find red gyarados in LAKE OF RAGE. You need to go up route 43 from Mahogany Citie = =
you cant
you have to get lucky fishing or just trade in the GTS (online) and then breed the gyarados with a ditto.