Compete and earn respect in the Need for Speed Underground Rivals, which is only available on the PSP. Like previous installments in the Need for Speed Underground series, Rivals lets you customize and challenge both Japanese and American tuner cars in pursuit of total domination of the street racing scene. This time, you can race on new tracks designed specifically for the PSP console. You can experience the new environments in multiplayer head-to-head modes, playable via Wi-Fi.