This is an interesting idea, I like the idea that once you start using the mechanic it starts to grow uncontrollably, and that it both helps and hurts you.
I think the movement is so slow. And I know the point is that you use the cells to speed up, but on the level where it says "There is two", the majority of my time is spent just getting to the spot I want to start using cells.
It's also really difficult to tell if I am "hidden" in the cells or not. A lot of times I thought I was doing fine, but then would just die. I think it needs to be a little more forgiving.
I couldn't get past the "There is two" level.