Take the truck with boxes to the lab. The road isn't difficult but watch out with the obstacles and don't drop many boxes. Use the W,A,S,D keys or the arrow keys to drive, the space bar for the hand brake.
Drive two construction trucks with the objective of scape of the cave. Move the stones, and upgrade your engine to do it. Drive with arros and change truck with space bar.
After we have left the first part of this series, here is the second game, equally spectacular and addictive... Lead with the arrows of the keyboard, activating the nitro by pressing the arrow forward.