How do you beat dino run

To beat the game Dino Run, you must complete all of the levels on a course and don't get killed by the earthquake/hurricane/comet thingy. If you do get killed, however, if you have a time shift, you can use it to try the level again. If you don't have a time shift or decide not to use it, you will go back to the beginning of the course but keep your stats. You get a free time shift at the beginning of each course and get an extra every time you get 30 eggs first time, 60 2nd, 90 3rd etc. Hope this helps.