Codes cheats for MX vs. ATV Untamed

MX vs. ATV Untamed - Game cheats, tips and tricks for Sony PSP

Machine Race key locations:
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Check the following locations to find the keys:

Bayou Delta: The key here is on a little island where the finish is located in
Time Attack. Ride as fast as you can into the water. You should get the key
even though you will crash.
Seaside Links: The key is on the balcony of the Marquee jump. Hit the tent
that is shaped into a jump, and grab the key.
Yucatan Ruins: The key is located in the courtyard with the water fountain in
the middle. The key is on top of the fountain. To get it, simply get on top of
the courtyard, then get on the arch, and ride off onto the key.