Why would you ever go off of Adventures as your source for what's cannon or not? That's like the 4th tier down as far as pokemon media goes. In the things that most people actually know MewTwo from, i.e. the first games, the first movie, and the second tv movie special, he either wipes the minds of people he encounters or is encountered by so few people that the story is inconsequential on a global scale.<br/><br/>Oak being known outside of Kanto makes sense because he's a high ranking professor in the field of pokemon, a subject the entire world pretty much centers around, he's essentially Stephen Hawking. MewTwo's entire existence is literally a secret in universe, so I don't know how that comparison even starts to make sense. How does a popular person being known outside their country make it more logical that a hidden experiment pokemon would be wildly known by everyone?<br/><br/>Also I know most legendaries aren't meant to be a secret, because they're talked about in LEGENDS, myths and stories and histories that are written about them and shared within their various regions. That's literally why they're called legendaries in the first place. The point I made in my post is that MewTwo ISN'T refereed to in any legends, because he's a man made pokemon, he is not a legendary pokemon in the same way other legendaries are, which is exactly why him specifically being widely known about doesn't make a lot of sense.<br/><br/>Not to mention that being an obscure, unknowable enigma is essentially the entire theme of MewTwo as a character. People aren't supposed to know about MewTwo, he's a mutant clone of one of the rarest, most mysterious pokemon in the entire world. Like in the games you only learn about him by filing through the remnants of a burned down mansion, and in the show when Gary/Blue tries to scan him with a pokedex it doesn't even work, because he's supposed to be a complete anomaly. Everybody knowing exactly who and what he is kinda robs the mystery and grandeur that's usually supposed to associated with him.