ok so today i will review sonic rival for the psp. so sega thgught that sonic can be on the psp. so they made sonic rivals. sonic rival IS NOT made by sonic team they had a game compony call backbone entertament so the game has only 4 people to play as sonic shadow kuncles and silvler the game was no long i finshed it in 2 days. a new part was trading cards. dr. eggman or eggman nega made a camera that turn things in to cards and sonic and friends must gather all of them i have only 82 out of 150. the carda are all pic of sonic caricters enamys egmman robots and sonic games from the first sonic the hedgehog game on sega genesis all the way to this game i think it is a really cool game so i give it a 5/5