For Mewtwo, the basis was Mew. For Shadow, the basis was not, actually, Sonic — at least not in universe. The legendary Pokémon and the moody 'edgehog are both synthetic beings, made in labs by ...

If you want to be the best like Ash Ketchum, you’ll need to prove yourself by defeating all Gym Leaders in Mewtwo. Can you do it? Of course. Capture Pokémon and train them, and soon ...