Bookmark this site / add it to your Favorites. Sonic Rivals is a racing video game, part of the Sonic the Hedgehog series that was released in late 2006. Free online fun and games featuring Sonic the Hedgehog, Super Mario Brothers, Megaman, Zelda, Kirby, Bubble Bobble, Super Fighter, Raiden, Star Wars, Harry Potter, Futurama, The … Super Mario Bros. and Sonic the Hedgehog online games - all the Flash and Java Mario games and Sonic games in one site. It has four playthroughs, one each for Sonic, Knuckles, Shadow, and Silver. Sonic Rivals cheats, Glitchs, Tips, and Codes for PSP. It was followed by a sequel, Sonic Rivals 2. It is the first Sonic game developed by Backbone Entertainment, for the PlayStation Portable.The game was also supervised by members of Sega Studio USA including Takashi Iizuka.. One year later, in 2007, a sequel called Sonic Rivals 2 was developed by the same company for the same platform. Knuckles searches Onyx Island for the Master Emerald, which mysteriously disappears. Sonic Rivals is a racing game for the PSP, released in 2006. For Sonic Rivals on the PSP, Game Script by FadeddreamsXXX. ¡Juega como Hedgehog, y derrota al Dr. Robotnik en uno de nuestros juegos de Sonic gratis, en línea! Sonic Rivals is a racing video game, part of the Sonic the Hedgehog series that was released in late 2006. Juegos de Sonic: Fans de Sega Genesis únanse: no busquen más. It is the first Sonic game developed by Backbone Entertainment, for the PlayStation Portable.The game was also supervised by members of Sega Studio USA including Takashi Iizuka. Elige Uno de Nuestros Juegos de Sonic Gratis, y Diviértete Main Site / Home Page. Jump to: Glitch (1) Tip (1) ... Unlock all of Silver's suits, complete his storyline, and beat all of the challenges as Silver.