Beat Single Race mode on Hard to unlock the monster truck.
Unlock Humvee:
In career mode take first place in all the divisions in the first three seasons.
Unlock Shelby Durango:
In career mode get first place in the speed division in season four.
Unlock Dodge T-rex:
In career mode get first place in the power division in season four.
Unlock Rod Hall Hummer:
Get first place in all divisions in career mode.
To Do Tricks:
To do tricks, hold down the R1 button and move around the R3 button. To can do backflips, front flips, and barrel roles!
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GameShark Codes
M) Must Be On
EC8782E4142CE55C
Infinite Retries
3CB9ABB81456E7A1
Max Career Cash
1CB9DAF414BE598C
Max Race Pts
4CB9F0F41456E70C