Sonic Riders: Zero Gravity for PlayStation 2 is a racing video game featuring Sonic the Hedgehog in a zero gravity environment. Published by SEGA in 2008, this game is part of the Sonic the Hedgehog series and is suitable for all ages with an E rating. Players can expect an exciting gameplay experience as they race around in various locations, competing against other characters from the Sonic universe. Although this listing does not include a manual, the game is sure to provide hours of entertainment for fans of the Sonic franchise.