At first i was taken by this game because i love motocross and stunts, but after like 20 minutes of playing i was already bored. This is a definite "rent only" game. The graphics are pretty sick. But i would never buy this game.
If you remember Excitebike from your childhood days, go play that. This is NOT a racing game, it is a physics simulator. The only controls are lean forward/back, gas, and brake. At no point in this game do you even get to steer. You simply jam on the throttle, travel in a straight line, and try to keep your balance on the bike. Save yourself the time, as every free gaming site on the internet (or your app store) has something similar, if not exactly the same thing. Complete shovelware garbage. Avoid at all cost.