Sonic is somehow pulled into the world of Mega Man, and he doesn't know which side to pick until he and Mega Man are captured by the infamous 'Dr. Wily', forced to join sides with the robot kid. They join together to try and stop a nefarious plot of the evil doctor, but will Sonic be able to help his friend, or will this be their final battle?

A second capsule was ejected from Sapce Colony ARK the day the disaster happened. Rumored that there was another 'Project Shadow' inside, but it had been lost and never found. That is until the presant day 67 years since it happened. Eggman has found the second capsule, and everyone is eager to releas what's inside, except for Shadow... until the impossible is revieled.

When the evil King Ganondorf escapes imprisonment, he finds that he needs another truly evil person to help him take over Hyrule. He finds Dr. Eggman who promises to help as long as Ganondorf helps destroy Sonic the Hedgehog once and for all. When Sonic goes to spoil Eggman's evil plot, he and Tails are transported to Hyrule. Now, Sonic and Link must team up to beat the evil duo.