Dr. Egg man has discovered the supercharged element ragnium on the mythical Island of Ragna Rock. He mines it as a fuel source, piping off the messy by-products of the operation to adjacent islands, creating fire and ice gameplay. Using this fuel to power his ultra-fast bot racers is his latest plan to discredit his eternal rival Sonic, but backed by ragnium, fire and ice, a robot army, and D-Fekt, an unflinchingly powerful henchman, this time Dr. Egg man just may succeed. Sonic and friends must re-claim each island by destroying enemies, vanquishing the Island Defender, winning rival races, and reversing the flow of the elemental tubes. It all culminates with an epic battle on the Island of Ragna Rock where Sonic may just have to save Dr. Egg man from his own creation. Harness the power of fire and ice to blaze through obstacles, puzzles, and freeze enemies in their tracks. Utilize Sonic's speed, Tails' flight, Knuckles' strength, Sticks' Boomerang and Amy's hammer to explore, fight and race through an undiscovered land. Compete with your friends in 2 player bot racing. Collect artifacts to compete on six additional tracks. Battle bosses so huge they take up both screens. Play mini games filled with challenging puzzles and time trials including a new iteration of the popular Sea Fox.