Jet Moto is a very hard game, and tries very hard to get you to lose.
The actual racing is interesting. You get 4 "boosts" every time you start a new lap, which are very helpful for those areas with lots of bumps, so you can boost right over then. There is also a grapple system around tight corners. You press O and this beam of pink will grapple you, swinging you around the corner to keep your speed. Grappling is a hard thing to master, but if you get it down, you'll probably be able to pass many people on the turns.
Although the racing isn't half bad in this game, the computer is just too good. I wouldn't recommend this game to anybody, unless they're fans of the series.