Get all the bonuses in Tangrowth's Swing Along.
you can become its friend but you cannot use it sorry
once u have all the pokemon, 'cept celebi, go to the shrine in ilex forest and then go to where you caught lugia and u will find a time flute, go back to the shrine and play it, then a level 30 celebi will appear, with razor leaf, confusion, psybeam and vine whip, if uy don't catch it, go to ilex woods a day later and it will be there again
Have the electibuzz in the meeting place teach you everything it has to teach and it will become your friend
theirs a code to unlock celebi and i can't remember what it is.
You will be able to battle him after unlocking the top floor in the haunted house at the haunted zone.
Buneary
you can get darkrai celebi mew arceus dailaga and palkia go to the pokepark wii website
I am sorry for all of you guys who think dialga or palkia is in the game, but they are not. Their are legendaries in the game though. Like shaymin, rayquaza, mew, groudon, jirachi, celebi, darkrai, and deoxys. So the answer for this question is no. Their is no password for dialga.
it is Emolga she is a cute bat pokemon its true
Well, the only way you can get celebi is to trade with a friend who has one
You have to beat gyrados's aqua dash with every character exept manaphy then beat her with pikachu and she will be your friend
First beat the game. Then, beat Rayquaza's attraction with all the Pokemon (Pikachu is optional). A notice will show up and say "Deoxys is now available to play as." This notice means you friended him.