http://www.nintendo.co.jp/n07/selbi/index.html
It's all in japanese tho, so...have fun translating.
From what I can see, there might be multiple ways to catch him, but still, the picture at the bottom of the "How to catch Serebii" page shows Serebii flying above the Forest Shrine.
Hope that explains anything...
But still, I think this is only for the Mobile Adapter version.
0) Do stuff ingame
1) Use Mobile Adapter
2) Get G/S Ball off of Nurse Joy
3) Go to Kurt
4) Go to the shrine
5) Put G/S Ball on Shrine (it's a Key Item, not a ball)
6) Fight Wild Celebi
7) Catch Celebi
8) Rejoice that you have caught a commoner weaker less TMable version of Mew
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"i dream of yay porygon dreaming of electric sheep pokémon dreaming of miltank porn. i think she likes it." - spunman
"...evil Spunman!" - Yay Porygon
That insane TM compatibility is what makes Mew UNIQUE. It is POINTLESS to make another Pokemon like that.
Celebi makes up for it by being extremely defensive and an ace at teamwork. Recover, Heal Bell, Leech Seed, Ancientpower, Baton Pass, are among the moves it learns naturally.
So in conclusion, saying Celebi is a weaker Mew is like saying Miltank is a weaker Tauros.
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"I think it's time I'll blow this scene, get everyone and their stuff together. Okay, 3, 2, 1, let's jam."
-From "Tank!"...the theme song to "Cowboy Bebop"
AIM: Nobie20
ICQ: 71976989
::Tries to think of a rebuttal::
::Fails miserably::
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"i dream of yay porygon dreaming of electric sheep pokémon dreaming of miltank porn. i think she likes it." - spunman
"...evil Spunman!" - Yay Porygon