http://www.onpause.org/2010/12/review-naild.html
In order to gain an advantage over the competition players can utilize the boost meter which is filled by completing â˜feats' such as landing massive jumps, reaching high speeds, hitting targets mid air or causing an opponent to crash. Keeping the boost meter filled is the way to success as the other AI racers will put up a decent fight, especially in the later stages of the single player tournament â" the main mode in nail'd. http://naildbiter.com/Y7LJY