Sonic Rivals 2, like the original, blends classic-style Sonic platforming with racing as you sprint through high-speed levels to reach the end before your opponent.
We're loving the colourful 3D graphics that not only look brilliant on the PSP screen, but make for some interesting level design as Sonic wings through twirling corkscrews, while the camera swoops round to keep him in view.
As well as improved power-ups and new levels, the new game will boast a brand new Battle mode allows two players to jump into six different multiplayer challenges by sharing just one disc using the PSP system's Wi-Fi functionality.