Articuno: Found in the Sea Foam Islands
Zapdos: Found at the end of the Power Plant
Moltres: Found on Victory Road
Mewtwo: Once you beat the Pokemon League head to Cerulean City, and go into the Cave. Mewtwo will be in the last room
Mew: Special Nintendo Event (Which is probably out dated) or GameShark: 0115D8CF
all legendary pokemon is available............
There are 4 legendary Pokemon on Red, Yellow, and blue. Maltres, zapdos, articuno, and mewtwo.
you get mewtwo in the cave next to cerulean c:
Well none since ho-oh isn't in blue
nowhere
The rare, non-legendary Pokemon in Generation I (Red, Blue, Yellow, Green) are:PikachuRaichuClefairyClefableVulpixNinetalesMeowthPersianFarfetch'dExeggcuteHitmonleeHitmonchanLickitungRhyhornRhydonChanseyTangelaKangaskhanStaryuMr. MimeScytherJynxElectabuzzMagmarPinsirTaurosLaprasDittoEeveeVaporeonJolteonFlareonPorygonOmanyteOmastarKabutoKabutopsAerodactylSnorlaxDratiniDragonairDragonite
In ruby and sapphire and emerald there is a legendary Pokemon called latios it is a dragon psychic type looks like a bird with blue on it.
yes you can
Zapdos Articuno Moltres Mewtwo Mew
You need to recruit one of the legendary birds. The island is automatically unlocked.
i am not sure about if they are the leader but they can be a partner
yes all Pokemon evolve in Pokemon mystery dungeon blue rescue team after you beat Rayquaza and legendary Pokemon don't evolve.