Nice little game :D
I liked this game. It takes a lot of concentration and logistics. The only problem I see is about the graphics that can be a bit confusing when we try to pass near the border (we can touch it without dying). And also I think it could be nice if we can see when new pieces are about to be created (you could make a path in the bottom black square to see them coming).
Ah and I made the best score for now with 8 million points, yay :p