Lets talk about Sonic Rivals PSP

In Sonic Rivals, players will unleash their own personalized moves and
power-ups, launching fireballs, zapping each other with confusion attacks, and
freezing rivals with ice attacks. Players will choose from Sonic, Shadow,
Knuckles and the new character Silver, each with their own individual
storylines. This brand new adventure delivers classic Sonic 2-D gameplay in a
three dimensional world where players dash through twisting obstacles in
immersive environments. Players will also challenge their skills in either
single-player or multiplayer modes using the PSP system's wireless feature.

The evil Dr. Eggman is out to capture Sonic's friends in mysterious cards and
it's up to Sonic, Knuckles, Silver and Shadow to compete against each other to
save them.



Players can collect up to 150 cards in the game and use them to wager on the
competition or use them to customize their character. For the first time,
players will be able to unlock outfits for Sonic and his rivals including
stylish tuxedos, leather, track suits, armor, shoes and more.