SEGA Europe and SEGA of America confirmed that the Sonic franchise will continue expanding on Sony’s PSP platform with a new title, Sonic 2 Rivals.

The game is slated for an autumn 2007 debut, and will continue the adventures of the speedy Sonic and his friends from the previous game, Sonic Rivals.

SEGA promises new enticing features for the gameplay, including a revamped rival “jostling” system which allows for closer head-to-head competition and more range weapons and power-ups. Additional features include the ability to defend or attack regardless of the position and a new game mode called Battle, which allows two players to jump into six different multiplayer challenges by sharing just one disc using the PSP system's Wi-Fi function.

Miles 'Tails' Prower and other new characters have been added to the mix of characters available to play as, while the new single-player Free Play mode will allow players to enjoy each level at their own pace. Each character in the game will also have their own unique signature moves that fit their varied personalities.

Card trading and collection in Sonic Rivals 2 has been greatly increased and will now include 150 collectable cards. This will enable players to customise characters' track suits, as well as unlock new PSP backgrounds and Cup circuits.