You can not get a mewthree without hacking into the system.
Mewthree is fake, REPEAT MEWTHREE IS FAKE >_<
There is no Mewthree period
There is no Mewthree
There is no such thing as Mewthree.
go to google images, and then type in mewthree/mewthree x
There isn't a "Mewthree cheat", since Mewthree doesn't exist.
There is no such Pokemon as Mewthree.
There is no such thing as a Mewthree.
Mewthree doesn't exist!
there is no such thing as mewthree
MewThree is %100 fake.
There's is no such thing as Mewthree.