The snake's control is poor and needs much tuning. If I am able to navigate around a corner I should not die from my tail hitting that very same corner as I move past it. Level 10 almost gave me an aneurysm because of this. I'm sure the tutorial for this game is awesome but the game itself needs some tuning.
 "Stringy"){kind=icon}
actually it's not a snake but a string, and the physics of a string works as in the game. Try on your own with a real world string