you can only get celebi in an event or pal park.
you can't
You can only find celebi in the special event.
event or action replay
you get it by an event.
Mystery Gift.
You have to migrate a Pokemon to Pal Park.
You cannot CATCH Celebi on Pokemon HeartGold or SoulSilver, but there is an wifi event a Gamestop that gives you a Celebi in mystery gift. You can also use a Action Replay™, but I suggest you do the event.
You cant it was a speacial event
You cannot catch Celebi unless you are using cheat codes or waiting for Pokemon events.
No, Deoxys is only in Emerald, and you need to migrate it to can catch it. As for Celebi and Mew, you need a cheat code for them.
Im sorry to say but you can not catch the legenedry celebi in Pokemon heart gold but you can get action replay and type in the code for action replay to catch celebi or you could go to the next celebi event
you cant.you have to get it in an event.then go to ilex forest,and you see your rival's past.