XGRA [GameCube] The Extreme Gravity Racing Association(XGRA) runs an incredible motorized bloodsport that is the future's most popular gaming event. Teams of daredevil riders fight against each other on the most dangerous racetracks in history. Enter this league as a rookie &amp; see if you can become a world champion! Complete contract and sub-missions while in mid-race to earn favors from team owners &amp; sponsors Blast away obstacle on the tracks, to clear your way &amp; create obstacles for your opponents Improve your bike with upgradeable weapons -- or enhance your rider withcybernetic implants Advanced physics modeling lets you feel every wheel lock, wheelie, skid, slide and even airborne control