MX vs. ATV Untamed cheats and cheat codes for Sony PSP

Machine Races keys' location:

Area: Yucatan Ruins
Key: Key for the Buggy
Key location: In the courtyard, on top of the fountain.

Area: Seaside Links
Key: Key for the Golf Cart
Location: It is on the balcony of the Marquee jump.

Area: Bayou Delta
Key: Key for the Trophy Truck
Location It is on a little island where the finish is located on the Time Attack.

Area: American Gothic
Key: Key for the 450 Dirtbike
Location: It is near the railroad tracks, on the roof of the building connected
to the railroad.

Area: Alaskan Tundra
Key: Key for the Snowmobile
Location: Jump over the tower near the airplane hangar