Kinda misses the point of the running game. Dirt piles are good for you here since without slowing down you can't possibly dodge a boulder. But being slowed is supposed to be bad for you because it makes it immpossible to make the longer jumps.
Omg, it is a tiny short dungeon crawl. You don't need a save. If you can't play for the whole five minutes just die and earn a new title and play again.
After you die, click off the game. The pause screen comes up. Hit resume. Pause screen goes away and takes the Done button with it, leaving you trapped.
What is the point of stacking? Think about it. You are wasting time not playing the game so that you can... what? Play the game later? Why not play the game now?