Sonic X Shadow Generations has now sold two million units according to SEGA, though it's far from the best-selling 3D Sonic ...

Sonic X Shadow Generations has sold two million copies, making it a much bigger launch than the original Sonic Generations.

Shadow the Hedgehog (voiced by Keanu Reeves) and (the even more evil) Professor Gerald Robotnik (also Jim Carrey). Team Sonic must put their differences aside to work together to save the planet ...