PlayStation Portable

The PlayStation Portable (also known as PSP) is a handheld game console made by Sony designed to rival Nintendo's highly successful Game Boy Advance and Nintendo DS. It uses a special kind of disk called a Universal Media Disc (UMD). The Sonic Rivals series is exclusive to this handheld device. Its successor is the PlayStation Vita.

Sonic games

 * SEGA Genesis Collection
 * Sonic Rivals
 * Sonic Rivals 2

PlayStation Store
The PlayStation Store is an online virtual market available to users of Sony's PlayStation 3 and PSP game consoles via the PlayStation Network. The store offers a range of downloadable content both for purchase and available free of charge. Available content includes full games, add-on content, playable demos, themes and game and movie trailers.

Sonic Games Available to Download to the PSP
 * SEGA Genesis Collection (US and Europe)
 * Sonic Rivals (US only)
 * Sonic Rivals 2 (US and Europe)

External Link
PlayStation.comPSP