Monster Jam Maximum Destruction

To unlock all trucks in Monster Jam: Maximum Destruction press R1, R1, R2, R2, L1, L1, L2, L2, START.

To unlock the 1983 version of Grave Digger, win one season of Cash Grab Mode.

To unlock the two-decade anniversary edition of Grave Digger, win the second season of Cash Grab mode.

To unlock a championship version of the truck you're using, win a season.

To unlock the Incredible Hulk truck, win season three of Cash Grab mode.