TRACKS BY Dry Cell THEME Motocross legend Mike Metzger and seven other riders spray mud across nine fantasy racecourses while pulling off a medley of impossible big-air maneuvers to a hard-rock soundtrack. PLAYABILITY Using Dry Cell’s debut CD, Disconnected, to accompany the whine of Metzger’s engine seems like a smart promotional tie-in. Too bad Warner Brothers Records unceremoniously ditched the band, reportedly after a budget dispute. Which means that ”Body Crumbles,” a single that was supposed to be getting heavy rotation on radio right now, is instead being drowned out by the racing effects in this game. And while Dry Cell’s grungy noise is surprisingly easy to play along with, Freekstyle isn’t going to help these Linkin Park-alikes sell many records. B+