I beat it. The mechanic is very cool, although the ability that can be triggered with Z may make things too easy in comparison with not having it. Once I understood that ability I breezed through the last two levels quickly.
Restarting levels is a bit too cumbersome.
But it's an adventure to go from not understanding the game at all to being able to solve every level. Combined with the excellent presentation (including the music) this is currently the best entry I've seen so far (note: I basically only play HTML5 puzzle entries, so this is a partial view of things).