If you mean Suicune which is one of the legendary dogs in pokemon fire red. To be able to see it you would have to pick Charmander as a starter pokemon then beat the elite four and become a champion. That is not done you would then have to catch 60 different types of pokemon and after you have 60 type pokemon (you can check on your pokedex) you then show it to professuer Oak. He will then upgrade your pokedex to the national pokedex! Suicune will be all over Kanto and what you should do is go to Route 2 and walk over the grass ( every bit of it ) there with repels on so you wont have to meet weak pokemons , then if Suicune doesn't appear go inside the big hut thing and come out then repeat it. Eventually Suicune will appear.
Have a pokemon with arena trap or a fast poke which has mean look to prevent Suicune from escaping. Lower it's health and then try to catch it.
You starter must be Charmander, and she will be in the wild.
to catch suicune, you had to of started with charmander in leafgreen and firered and had to of defeated the elite 4. he is then randomly encountered in the wild. if you didnt start with charmander,you can still catch one of the 3 legendary dogs. to catch entei, your starter has to be bulbasaur and you had to of defeated the elite 4 and is randomly encountered in the wild, the same with raikou if you started with squirtle. i hope this helps you!
You can't catch it on Firered you can only catch it in Emerald
You can't catch it.
you can not catch him
You would have had to chosen Charizard as your starter Pokemon. Whichever legendary dog appears depends on your starter. You will find your legendary dog randomly in the wild. (you must beat the elite four first)
You can catch a Ho-Oh at Navel Rock in Pokemon FireRed.
You can catch Moltres at Mt. Ember Peak in FireRed.
No. You can catch a Growlithe in FireRed in Pokemon Mansion on Cinnabar island. FireRed is the same as LeafGreen so you can catch it. ;P i have 2 of them
You catch Ekans on Route 4 in FireRed.
You can catch one in the Safari Zone...
You can not catch it in leafgreen,but in firered you can.