You could either:
A. Trade one over from Heart Gold or Soul Silver (Find it in the Lake of Rage) or
B. Find a shiny Magikarp and evolve it
Actually there is no red Gyrados. I mean there is, but a red Gyrados is a shiny Gyrados.
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yes
It exists only in Johto. Its just a shiny Gyrados. Fish for Gyrados, in 10, 000 tries you are sure to get one. That's how rare it is.
The answer's on my website: www.manaphy-star.webs.com All 6 steps...
to get a red gyrados you have 1% of finding a red gyrados and you have to use a super rod to find a red gyrados.
red gyrados is just shiney gyrados use the shiney code and find gyrados
you need to catch a gold magikarp(shiny) by fishing or breeding then level it to 20. Or you can catch a red gyarados(shiny) by random. The chance to have it red are i in about 8000
The Red Gyrados drops it. If you already fought the Red Gyrados, you should already find it.
Gyrados's shiny color is red to get a red gyrados is very hard it takes 8000 chances or so to see it keep finding gyrados until its red.
The red Gyrados is found in the Sendoff lake at the Spring Path.
you get a lvl 100 magicarp at the resort area, not a red gyrados