What starts as a friendly competition between Sonic and Knuckles quickly intensifies as Shadow and other rivals jump into the action. Sonic Rivals allows gamers to utilize boost moves and power-ups to trip, shove, and vault over each other while hurtling towards the finish line at breakneck speeds. Players will negotiate wildly twisting 3D tracks while avoiding the insidious Dr. Eggman and his myriad of hazardous traps and contraptions.