MX vs. ATV Unleashed will build on the overwhelming success of MX Unleashed, combining Rainbow Studio's knowledge of all-terrain vehicles to create an off-road masterpiece that will redefine the action-racing genre.

"When you combine Rainbow Studio's dominance of ATV and motocross development, and apply their one-of-a-kind rhythm-racing physics engine, the result is an off-road racing experience with unmatched game-play," said Jack Sorensen, executive vice president of worldwide studios, THQ. "They have an unparalleled track record in action-racing development and have raised the bar once again."

"Our development team's first-hand riding experience and passion for off-road sports has set extremely high standards for every racing game we've built," said Scott Novis, vice president, Rainbow Studios. "'MX vs. ATV's' open class competition, varied racing events and new off-road vehicles are a tribute to the team's desire to continuously exceed their own expectations."

In "MX vs. ATV Unleashed," players will power through all-new environments and event types, choosing from a variety of new vehicles. A redesigned monster truck, powerful sand-rail and raised 4x4 golf karts will meet ATVs, dirt bikes and bi-planes to compete in massive free-world environments featuring hill climbs, machine challenges and short track races. The game's career mode will allow gamers to choose from the top professional ATV and Motocross riders.