So Clever
This is a lovely game? I'm not entirely sure it's a game as much as it is an interactive flash because usually games have a purpose. This seems more like a proof of concept or simply as others have said a great beginning of a game. Without any purpose, it can become quickly tiring, especially once one has figured out the dynamics and how to really make things happen the way they want.
Since there were no goals, I made my goal to keep the cell size very small and that made it entertaining for a good long time.
This is some great work and I think you could have something AMAZING if you build on this. Good luck!