The land before time is coming to an end. Volcanic eruptions spurred by the asteroid that collided with Earth is forcing anything that wants to survive underground. Roll as deep and as fast as you can, or else you'll be another rock forced to extinction in the fiery lava above. Don't stop once as you race downward because the surface of the earth becomes more and more turbulent and you will have to go ever deeper underground.

It's up to you to ensure your rocks survival, can do it? The game has no touch controls because all movement is done with the accelerometer, and you must tilt your phone to roll your character down the gaps into the ground. Collect stars and other bonuses on your way down to ensure the highest score possible.

If you don't roll down fast enough, though, and your character touched the top of the screen, it's game over. If you think you're up to the challenge of 7up 7 Down surviving the end of dinosaurs, and you can make it to the safe recesses underground, then try your hand at Prehistoric Stone Fall now!