Crimson Crater

Crimson Crater is the final course in Sonic Riders:Zero Gravity's Hero Story. It is where Eggman's mother computer is located and where he plans to use the power's of the Arks of the Cosmos to control all the worlds robots. Sonic has to race Knuckles,Tails,Amy Rose,Jet,Storm and Wave to win the Arks of the Cosmos and save the world from Eggman.