the ash man83
Avid TCG Fan
are you sure that it's caught in a friend ball? what color is it, what markings does it have? if so, that's a bad hack. caught in kanto means it came from FR/LG, but friend balls weren't usuable again until HG/SS. that ID number is on the unmentionable site, but with a different OT name. i'm gonna have to call a hack on this one...
I'm fairly sure you can catch Mewtwo in Cerulean Cave in HGSS. That would explain the Kanto+Friend Ball combination, would it not?