How do you get Celebi in blue rescue team?

GOOD LUCK PKM FANSYou finish all the dungeons and finish the ultimate dungeon. (You can only bring one Pokemon and you will have to start at Level 1) Then you should see Celebi, it will talk to you then join your rescue team. The dungeon has 99 floors. If you don't believe me go to www.serribe.net. Go to the dungeon games then go to Legendairies, it will tell you EXACTLY how to get it!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!