A Bit of a Gripe
I know it's a balancing thing, but do you really have to move that slowly on ceilings/pushing blocks? Couldn't you make the meter run out faster while doing these tasks instead? It makes repeating the later puzzles more tedious than interesting. "Hm, I already know how to do this but I have to watch my blob Joe push this block excrutiatingly slowly across the screen."
While I'm on the subject, block pushing some puzzles made no sense to me at all. Like how pushing two blocks into one another makes the former go on top of the latter?
That said, there were lots of a-ha moments where I felt like I had completed some cleverly designed puzzles. And the concept lends to some pretty interesting puzzles. I was more interested in the ones where the meter forced you to move more quickly/adeptly through an area, rather than the ones where I was running back and forth while pushing a block across the screen.
Great concept, just nexf time more time-based puzzles and less grinding puzzles.