I don't believe this. It implies that the game is available to be ripped from. They're also not carrying the same quality as Game Freak sprites. I'm calling these a hoax made by fans.
Real Pokemon, fake sprites. Sorry king leo. The ones from the real game would not have been ripped yet.
Sorry to say Leo. This sprites were actually made by the guys at Bulbapedia, if you go here, and put your mouse over the sprites, they will say "THIS SPRITE IS FAKE". Sorry man. They'll look much better on the real game. Another way of telling these are fake is, that you can see that they are based off the Sugimori Art, where-as they have their own special animations and still sprites in game. Sorry again. http://bulbapedia.bulbagarden.net/wiki/Zorua