Mewtwo Will join your team arter you finish mewtwo strikes back. Travel to the Island and talk to mewtwo! Answer yes and be sure to have room for ut om your party, and there you go! Mewtwo is yours! It will be level 80.
Pokemon ash grey is not an official game It is a Rom hack of Pokemon FireRed
You should use the legendary pokemon pikachu but he has to be level 200 or else he wont be able to use thunder bunder.
Hj
Not counting the pokemon from Unova, all of them but Raikou.
no he doesn't...at least not yet.