The Pokemon Company Japan released a trailer for their new animation, Pocket Monsters: The Origin, created for the kids who played the Red and Green versions* of the game. The Origin follows Red and his Charmander throughout the original storyline, where he'll of course fight his rival Green, and defeat Team Rocket on his journey to become the Pokemon Champion. Check out the trailer after the break.
*In Japan the first Pokemon games were Red and Green. Blue was the third version introduced.