Well there's Mewtwo, Mew, Articuno, Zapdos, and Moltres. and I think you can get all of them in Pokemon Red Version.
groudon
In Pokemon Red, it is possible to find Articuno, Zapdos, Moltres and Mewtwo - all of which are legendary Pokemon. Mew can also be found using the Mew Glitch.
There is no legendary Pokemon in berry forest.
No its not a legendary because in my Fire Red I see them EVERYWHERE!!!!! no its not a legendary Pokemon so its common
you cant. You can only do that on platinum):
NOTHING HAPPENS
All except the 4th gen ones
keep training, all legendary Pokemon fall in time
the same as moltres and articuno, you get it automatic. its the legendary island, you need all three Pokemon's for the sliver trench were lugia is.
There are 4 legendary Pokemon on Red, Yellow, and blue. Maltres, zapdos, articuno, and mewtwo.
all legendary pokemon is available............
you dont