You cannot. There is no mewthree on any official game. It is just a fan hack.
There's is no such thing as Mewthree.
as far as i know there is no such thing as mewthree in Pokemon
You can't get it in any games.
mewthree
Mewthree does not exist. MewTWO is at the end of Cerulean Cave.
there is no such thing as mewthree in Pokemon
you can only get mewthree in leafgreen firered, but you could migrate... mewthree is a fake Pokemon is it worth the chance of ruining you game ?
You cannot. Mewthree was made up by fans, and only exists as a fan hack.There is no such pokemon.(sorry for disapointing you...)You can, if you hack.
Sorry but Mew 3 is only a hack and is fake.
MewThree X is a Hacked Pokemon name. MewThree X is just a name that Hackers created. MewThree X isn't a real Pokemon.
i have pkmn pearl but i know one thing that !!!!!MEWTHREE DOES NOT EXIST!!!!!
The only way you can catch mewthree in leaf green is by getting it to low health. Once it is at low health use a regular poke ball or a super ball to catch it.