Celebi was an event during 2011 in Pokemon Soul Silver, Heart Gold, Pearl, Diamond, Platnium. But now it already passed. Maybe they'll get an event for Celebi for Pokemon Black and White. You can also use the Action Replay and get the code for Celebi.
Celebi isn't available in Pokemon Black and White. You have to transfer it into Pokemon Black and White or trade for one.
transfer celebi from DIAMOND,PEARLl,SS,and HG
u can transfer your celebi to Pokemon black or white by using the transfer machine after u defeated the elite four.hope this helps!
Use the transfer machine
You can not collect a celebi on black or white. You need to transfer from the 4th generation.
There is no in game Celebi, you need to transfer one from another game.
Transfer using Relocator or poketransfer lab.
you can't.you have to transfer it via the poke transferer.
If you have Celebi on Pokemon Diamond, Pearl, Platinum, HeartGold, or SoulSilver, you can use the PokeTransfer machine in Pokemon Black and White to transfer it.
you will have to transfer one from Pokemon diamond, pearl,platinum,soulsilver,and heartgold
at the end of the game there is this place where you can transfer Pokemon from different games to black or white.so get celebi and trade it to your game with poke transfer.chow
Not possible. There are n events as of 2/24/12. However, you can transfer celebi via poketransfer.