There hasn't been a really good puzzle game on Kongregate for a long time, I really enjoyed playing this and hope that more game developers will start making puzzle game that are as enjoyable as this. My only gripe is that when dragging the coloured blocks around, I would find that it would suddenly flick into a different lane, and possibly mess up a path I had already drawn. Its not a big problem, I just thought i would let you know. Anyway great game, 5/5! :)