Celebi and Mew

[shining-Celebi]

If you don't fight Mew and Celebi in Mysterious dungeon, what is the purpose of them?

 

[KirbyXD]

to make people want them and then make an event and make lots of money.

 

[Dark_Lukerio]

Their sole purpose is to be Pokemon that are damn near impossible to get.

That is all, and nothing more...

Can't remember what that's from...

 

[Serebii]

Who said you don't fight Mew?

God knows what I did when I defeated Mew then

And you can battle with them yourself as in Control them in dungeons and so forth