Chat with our AI personalities
You go into the the first building on the first street in Castelia City. This is the Game Freak building. Inside who will see a boy and girl, talk to the girl to see Zorua, although you cannot catch him unless you have the Ilex Forest event Celebi from Heartgold and Soulsilver. In this case, just go in the building and talk to the boy.
in castelia city, you will find a crying boy which is in care of a babysitter. You need to bring an event celebi from one of the previous generation games (diamond, pearl, platinum, heartgold, and soulsilver). The boy will transform into zorua and become part of your team.
Edit: Celebii must have been transfered over using the Relocator otherwise the event will fail to trigger.
it is in castelia city in some building. there will be a lady asking you to talk to a boy and he will transform to a zorua. BUT YOU NEED A CELEBI
You must have gotten the event Celebi in Soul Silver/Heart Gold and transfer it, in order to activate the Zorua event. Pokemon events in B/W are one activation only.
Zorua can be found in Castelia City by event with fateful encounter Celebi.
You need to transfer over the Pokemon Celebi that was in an event into Pokemon Black and go to Castelia City. Go to the building in northeast and someone in there will turn into a Zorua, because Celebi will reveal him. You don't need to fight Zorua, it'll automatically go into your party if you have space.
You have to evolve zorua
The only way to catch Zorua in Pokemon Black or White is to have it traded by someone else (Zorua can be bred). You may also get it as a future event Pokemon.
You can't get one legit anymore, but you can use cheats.