well, that depends. if you defeated it, than no. but otherwise, like if you ran away, i don't know because, who runs from a legendary (:-l
No
no, you can in gold
Which ever ones you cant catch (or are to lazy to catch) with an ultra ball. I used it for ho-oh, since he was lv.70 and i couldn't get him with an ub
you catch him with a master
you do the ho ho event you have to find the ticket
You can catch a Ho-Oh at Navel Rock in Pokemon FireRed.
You can catch ho-oh at navel rock if you have a mystic ticket if you don't have the ticket you can get a ho-oh from Pokemon colosseum instead.
Yes. I think you can catch both Ho Ho and Lugia
Master Ball
NO
You catch Ho-oh in Colluseum and you trade it to the GBA game, and then you migrate.
Ho-Ho the legendary Pokémon appears in both games: Pokémon Heart Gold: Ho-Ho is the legendary you can catch in the game. Pokémon Soul Silver: You can catch Ho-Ho after you get the Rainbow Wing from the man in Creaulean City. Then you go to the bell tower and at the top the Kimono Girls will dance like they did for Lugia and then you battle HO-HO and catch it. The Ho-Ho will be lvl 70. (sorry if its not in creaulean City) and sorry if its wrong.