The fourth game in the critically acclaimed Extreme-G series takes futuristic racing to the next level for Xbox, PlayStation and GameCube consoles. The XGRA, which stands for Extreme Gravity Racing Association, is holding a new competition to determine the global champion in the sport of super-sonic gravity-bike racing. If you think you have what it takes, choose one of eight unique characters and test your nerves on seven demanding racetracks, ranging from night and day races, to competitions in the midst of a raging thunderstorm. Rely on you skills, in addition to a slew of deadly weapons and power-ups to come out victorious.