Mx Vs ATV Untamed - Xbox 360 Own the off-road: Dirt Bikes, ATVs, Monster Trucks, and the new ORV Sport contend head-to head to own the off-road X-CROSS: Eight unique racing series, including new EnduroCross and Open cross events, are crossed into one ultimate off-road championship Rhythm Racing: Revolutionary real world physics introduce new power slides, whips and scrubs Customization: Amp up your vehicles with more power, handling and acceleration Online: 8 player online racing