This is a very interesting concept that I appreciate. That being said I feel like it needs to be more fully developed, a better control than just click and hold could do wonders for the playability. I suggest more of a point, although "get as many points as possible" seems pretty popular. I do want this to stay as inspiration to others but I feel like it needs a revamp before you put it back up.
All in all not that bad but gets boring after 10 or so generations.