What starts as a friendly competition between Sonic and Knuckles quickly gets intense as other rivals jump into the action! Utilize boost moves and power-ups as Sonic’s rivals try to trip, shove, and vault over Sonic while hurtling towards the finish line at breakneck speed! Negotiate wildly twisting 3D tracks, avoid hazardous traps and hazards, and watch 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 based on tightly designed gameplay mechanics to support high-spirited competition and ultra-tight races!

• Unique “Head-to-head" experience!
• Single Player Mode: Competing one-on-one with each of your rivals will feel just as competitive as if playing against an actual player!
• Multiplayer Mode: Go head-to-head with your buddy and trip, shove, even vault over each other as you hurtle towards the finish line at breakneck speed!
• Sonic style 2D gameplay in true 3D environments, custom-built for the PSP!
• Race in Sonic’s traditional 2D gameplay, but throughout obstacle-filled 3D tracks, enhancing the thrills of the race!
• Built from the ground-up to maximize the technical potential of the PSP.
• 4 characters, 4 different storylines: select Sonic or one of his rivals and play through each of their story through fast and winding stages!
• Extensive rewards system based on trading card-collecting to enhance your character’s various skills as well as character customization.
• WiFi connectivity allowing you to wager trading cards for various multiplayer challenges!

Noe som starter som en vennskapskonkurranse mellom Sonic og Knuckles blir fort enda mer intens når flere rivaler kaster seg inn i konkurransen. Ta i bruk ekstra ting du finner for å gi deg bonus egenskaper mens du løper mot målstreken i en sinnsyk fart. Styr deg gjennom masse hindringer og pass deg for Dr. Eggman som prøver å lage trøbbel for deg. Uansett om du spiller alene eller mot en venn så er det en 2-spiller opplevelse.

• Unik en-mot-en opplevelse.
• Enspiller modus: Det oppleves akkurat som å spille mot en ekte motspiller.
• Flerspiller modus: Spill en-mot-en mot en venn og kjemp for å komme først over målstreken.
• Sonic 2D-stil gameplay i ekte 3D-omgivelser, spesialdesignet for PSP.
• 4 karakterer, 4 historier: Velg Sonic eller en av hans rivaler og spill gjennom hver historie.
• Avansert belønningssystem basert på kort som oppgraderer karakteren din.