Pokemon, Yugioh, and dragon ball have been around my entire life - and still producing more cards, shows, and games... To be honest - any sensible parent would see this and be like 'Isn't it the same thing over and over? You'd be wasting your money buying the next one' ... kind of like call of duty... basically same theme, similar plots, similar game development .... if you've bought and played one, the others usually won't be much different.
Mostly about the violence. And the evolution, what jkjkjk said is also a thing in the matter I think. I remember the time when I secretly kept Pokémon cards, long ago Anyway, many of my friends did grow up with Pokemon, and one of my favourite youtubers talks a lot about it too, so I do know a lot about Pokemon.
Sapphire. Obviously XD My sort of main priority is to catch me a turtwig and give that sucker an ever stone (I think that's the name XD) and get 100 level. I'm just a sucker for the cuter pokemon and grass is good against water.
Considering Arceus has the Psychic plate which makes him, in the movie/anime, immune to all attacks of that type, Mewtwo wouldn't be able to do anything psychic related to him. Plus Arceus is, oh you know, GOD.
But Mewtwo was defined as being the single most powerful pokemon in all of existence, was said that it will always (IIRC) be the most powerful. Arceus was not.
How is the demo so far? I have a code for it but my ds won't update so I can't put the code into the shop. >_>