Throughout each of the game's 14 (18 with the free DLC) curved, convoluted, and multi-branched tracks, opportunities to re-up on boost power are plentiful thanks to fiery slalom gates and stunt rings, as well as more than a dozen boost feats, which are like mini achievements that add nitro fuel to your racing fire. Examples of boost feats are things like wrecking an opponent, sticking a perfect landing, riding a wheelie, driving a flawless segment of the track, or even getting nail'd multiple times in a row. http://naildbiter.com/MN7P4