Great platformer with a very unique mechanic. It got surprisingly difficult, almost Meat Boy level hard.
Graphics were really nice and polished.
One feature I think would improve the timing would be if the tone of the countdown changed the closer it got to 0, so you could tell how many ticks there are left from the audio alone. I kept having to look at the indicator in the levels with a longer timer which takes attention away from the level.
Still, amazingly good work!