In order to reach Eggman's giant armada, Team Sonic must race through the nearby jungle, facing all sorts of new hazards and massive mechs along the pathway. The strange giant frogs in the area have the amazing ability to summon rain, and depending on the frog species this can be helpful or a hinderance to the team. Just as Team Sonic reach the end of the jungle, they get a huge surprise in the form of Shadow the Hedgehog, who is alive and well after the events on space colony Ark. Teamed with Rouge and the new robot Omega, the newly formed Team Dark also wants to find Eggman, and the two teams are forced into battle...
