Good fun! The time pressure is tough and I only just scraped by in the first two levels. Unfortunately the third level had me beat, though I watched the death screen scroll by to the end to see what came next.
I enjoyed the little puzzles throughout the levels, figuring how to hit switches in time and how to manouevre spikes out the way or onto switches for you.
There were a couple of areas which utilised verticality in the level, and the camera angle made it a little difficult to figure out the depth of the player, but it was never too much of an issue.