XGRA: Extreme G Racing Association

Gameplay is similar but slightly different to previous games in the series. XGRA features a wide range of riders, tracks and bikes that can accelerate at an incredibly rapid rate, going from 0 to 300 mph (0 to 483 km/h) in a matter of seconds. A returning feature is the ability to break the sound barrier: upon reaching 750 mph, all sound effects will cut out, except for item collection sound, other rider's taunts, weapons firing, and in-game music. (wiki)