Sonic X Shadow Generations

In Sonic X Shadow Generations, players take on the role of Classic Sonic and Modern Sonic, as well as Shadow the Hedgehog to stop the world from being taken over once again, with their stories being separated into two unique, fast-paced action platformers. Time comes to a screeching halt in Sonic Generations during Sonic the Hedgehog's birthday party, which his friends decide to throw as a surprise for the hedgehog. Unfortunately, the party doesn't get very far, because a mysterious entity shows...