The game is about a monster truck and when you say monster truck, you can expect that it crushes everything on its path. At least, if there are anything o its path, but this game only has a few car that it can crush since the scenario is on a mountain.
Yep, those mountains are pretty high and no monster truck can crash those huge boulders. Even those monster trucks will have a hard time on this terrain.
Your goal here is to reach the finish line at the least time possible or at least the designated time indicated on the screen.