Awesome concept behind this game. The tutorial being placed through the level is a nice non-intrusive way to introduce all the mechanics of the blob. The synergy between the split blobs is cool, almost like having a friend to assist through the level with you.
My only critic would be the camera is not the best it could be, where I think it's a bit too fast and the collision with the walls is a bit unpleasant.
Other than that, expanding this game with more levels and puzzles could turn it into a very complete and polished puzzle game with very unique puzzle solving. Good work!