wild in kanto ( after beting elite 4) if you have bulbasur then you get entei, if you have squirtle then you get Raikou, but if you have charmander you get suicune but to catch them you need a master ball i hope i helped you :-) :-)
use master ball because of the (roaming roar glitch) if they use roar on u, they disappear from the game forever ( i hate this glitch )
You can not catch it in leafgreen,but in firered you can.
You can only catch sudowoodo in emerald.
To get Pokemon firered on PC download a vba and Pokemon firered ROM
you can't catch any hoenn Pokemon in firered or leafgreen you must trade hoenn Pokemon from ruby or sapphire or emerald to leafgreen or firered.
You can't.
gatch them with a master ball but trade the master balls
None of the legendary dogs are available in Emerald you must obtain them from Firered, Leafgreen, or Pokemon Colosseum.
Trade from Pokemon leafgreen or firered
After you catch mewtwo you go and beat the Pokemon league again to go and catch the legendary dogs!!!!!!!!!!
You cannot catch the legendary dogs in Diamond or Pearl, you must migrate from Pokemon LeafGreen, FireRed, Colosseum, or XD.
You can only catch one of the dogs which depends on what starter you chose to get the rest get one from firered to get the second and the third from Pokemon colosseum.
You can't catch it on Firered you can only catch it in Emerald
you can not catch him
You can't catch it.
You can catch a Ho-Oh at Navel Rock in Pokemon FireRed.
You can catch Moltres at Mt. Ember Peak in FireRed.
You can catch one in the Safari Zone...