SEGA of America, Inc. today announced that Sonic Riders: Zero Gravity for the Wii home video game system from Nintendo and the PlayStation 2 computer entertainment system has shipped to stores across North America. This intense racing game brings the rush of adrenaline that racing fans are looking for and is packed with stunning environments, all-new moves, and vehicles that evolve to offer a high-velocity white-knuckle experience for any gamer.

For the first time ever, Sonic Riders: Zero Gravity gives players the ultimate in speed boosts with the ability to control gravity. Sonic and friends can now take advantage of two brand new moves – Gravity Control and Gravity Dive. With just a push of a button, Gravity Control can change the laws of physics, altering courses by turning walls into tracks and creating alternate pathways to access new shortcuts and Item Boxes. Then, gamers can experience the ultimate speed boost with Gravity Dive, an amazing gravity-defying power that causes objects to hurtle through the air at an incredible velocity. Using Gravity Dive, players can also grind on objects floating through the air and refill their gravity meter giving them increased air time. Sonic Riders: Zero Gravity features 18 playable characters – 12 characters from the first Sonic Riders game including Sonic, Knuckles and Tails, and six characters new to the Riders universe including Silver and Blaze. The game also puts players in the driver's seat with a series of advanced racing vehicles (known as gear) – some of which can be evolved either through power-ups or using collected rings in the store. With 60 types of gear available, players are sure to find their ultimate speed machine.

Sonic Riders: Zero Gravity offers multiple gameplay modes to satisfy single player and multiplayer fans. The game features Story mode, an action-packed single player experience, along with several additional challenges that are available for both single and multiplayer gamers. Multiplayer modes can be played by up to four players and includes Survival Relay (run the relay using Gear as batons), Survival Ball (use Gravity Control to shoot the ball and score), Survival Battle (slam foes with objects using the Gravity powers) and the unlockable World Grand Prix, where players can unlock a circuit and race for the ultimate racing challenge. Finally, gamers can take advantage of the Wii online capabilities via Nintendo Wi-Fi Connection and upload high scores to the international rankings or race against the ghost of players from around the world to beat international high scores.

Sonic Gravity: Zero Gravity for Wii and the PlayStation 2 computer entertainment system is rated "E."