In Santa T-Rex Run, Santa will be surrounded by a grey wilderness, with just his red hat providing any color. Your objective is to avoid colliding with the surrounding flora and fauna, such as the cactus, the leaves, and the shrubs, because doing so will result in a game loss.
The more you travel, the higher your score will be, so your objective is to cover the greatest distance possible. Clicking the screen is all that is required to leap over barriers; it's that simple. At times the dinosaur will move quicker, and at other times it will move more slowly; at both rates, you must demonstrate that you can overcome any obstacles in your path.