You Can not
To catch Ho-Oh in Pokémon FireRed, you must first have the National Pokédex, which requires you to complete the main storyline and defeat the Elite Four. Then, go to the Sevii Islands and reach Island 8 (Bario) where you'll find the Ho-Oh at the top of the Bell Tower after completing the necessary quests. To successfully catch it, bring plenty of Ultra Balls or a Master Ball and prepare your Pokémon to weaken Ho-Oh without fainting it. Be sure to save your game before encountering Ho-Oh to avoid losing your chance to catch it.
Ho-oh is located on Navel Rock in Pokemon Fire Red Version. If you want to get there, you need a mystic ticket.
I'm pretty sure it's the ticket that helps you get to Navel Rock where you can catch Lugia and/or Ho-oh.
The only way to get ho-oh is to get one from Pokemon colosseum which you must use your story mode Pokemon in the colosseum battles mt battle vs 100 if you finish this without losing all your continues you will get a ho-oh.
You Can not
you catch him by trading from someone or a gameshark or a Nintendo event.^.^
so you get a ticket and you go to the sailor IN VEMIOLEON CITY! ps i caught him with a luxary ball
you don't!
You must attend a Pokemon live event but they no longer have them you can catch one in Colesseum though
Ho-oh does not appear in Pokemon red, as Pokemon red is a first generation game that only features 151 Pokemon while Ho-oh appears in silver/gold/crystal, a second generation game.
Ho-oh and Lugia are on the eighth island, I don't know how to get the eighth island though.
Ho-Oh in Fire Red/Leaf Green can be obtained only through a official Nintendo event.
he only way to get ho-oh in fire red is to hack it or go to a Nintendo thingy, then go to 8 island. there you will find ho-oh and lugia
in a fire tower where you let the legendary dogs out you need a rainbow feather
You have to trade him from fire red or leaf green
you dont:( Unless you use a hacking device.