Sonic the Hedgehog 4: Episode II is a continuation of Sonic the Hedgehog 4: Episode I, whose actions will unfold after the events of the first part. Sonic and Tails have to unite in the fight against Metal Sonic, and returned the insidious Dr. Egmanna, which concluded an alliance, and destroy their evil plans. The game passing opportunity together, both on the network or locally.

The Sonic 4 Saga continues in Episode II with the return of a beloved side kick and fan-favorite villains!
Following the events of Episode I, Metal Sonic has returned to form an alliance with Dr. Eggman! To face this new evil, Sonic will have to call upon an old friend to help him save the day! Now joined by Tails, race across four new Zones and take down fearsome new badniks with deadly combination moves in order to put an end to this dastardly duo�s plans!