Instructions:

The RIGHT ARROW KEY will help to speed up the vehicle.
The LEFT ARROW KEY, does the opposite.
Use the UP ARROW KEY to make the 4x4 jump.
Try not to crash into termite hills and fall down canyons. The active geysers will give the 4x4 and extra lift if you're lucky to land on one. Collect the cash that falls out of Kangaroo Jack's pockets!