In Ilex Forest and upwards where the tree is blocking the way where you need to use Cut.
to get celebi
go kill him
Celebi is found in the Ilex forest near the 2nd Gym, at the shrine
While in the old Japanese Crystal version, you could obtain a GS ball for Celebi's shrine, they've yet to release any way in the newer versions to obtain a Celebi
take them to the celebi shrine and have celebi open there hearts
get 360 Pokemon on the pokedex professor Elm will give you a gold and silver ball go to the shrine and you will put the GS ball in the shrine Celebi will atack you that's when you catch him.
it's not in there. The spiky eared pichu is in there and that's it
You go to the Ixel forest or something like that there should be a shrine there similar to the one in the Pokemon forever forest using the celebi obtained in an event that ends March 6, 2011 put celebi first in your party and press A on the shrine
Go to the Ilex Forest Shrine of Celebi and tamper with it. You must have Celebi walking with you. It will take you back in time and you will have to face the leader of team Rocket.
Get the gs ball from mystery gift and put it on a shrine in petalburg woods then celebi will appear it is lv40
you use it to put in the shrine to cath celebi
I havent played it, but from what ive read on wikipedia, you dont.