It?s a one-on-one race between Sonic and his top rivals where the gloves are off and winner takes all! What starts as a friendly competition between Sonic and Knuckles quickly gets intense as other rivals jump into the action. Sonic?s rivals trip, shove, and vault over Sonic using boost moves and power ups while hurtling toward the finish line at breakneck speeds. Players will negotiate wildly twisting 3D tracks and avoid hazardous traps while watching out for the insidious Dr. Eggman and his myriad of contraptions. Whether playing alone or against a friend, it?s always a two-player experience with new, innovative gameplay mechanics supporting the high-spirited race! Unique head-to-head racing experience! Single Player Mode will feel just as competitive as two-player mode. Multiplayer Mode pits players against friends via WiFi. Custom built for the PSP® system! Sonic-style 2D gameplay in 3D environments maximizes the technical strengths of the PSP system. Four characters and four unique storylines allow for a different game experienece every time you play. Win trading cards to enhance character skills and customization options. Trading cards can be exchanged with friends via WiFi connectivity.
...