With this available multiplayer races promise to be more fun than a barrel full of monkeys. Graphics, Sound, etc. Each course has a unique look, with stunningly beautiful skies and terrain. Everything does whiz by pretty fast, but in some cases you may want to just cruise through at slow speed to admire the view. And despite some odd clipping effects and some texture tearing in a few places, this is, on the whole, a well wrought game graphically.
Sound effects are generally good, with bike sounds convincing.
The music is forgettable, but not terrible. The added touch of 3D sound, if you have the hardware, makes the effects all that more striking. You can hear the other bikes coming up behind you. The manual is short and sweet. It explains how to use the intuitive interface and set up multiplayer games reasonably well.