I definitely do agree with brad that the scope creep got to this game (I can tell that you put a decent amount of work and effort into the claw mechanics though)!
I think that the combination of Angry Birds and Claw was well thought of, and was interesting! But the Angry Birds portion does suffer because of the weight/structure of the individual blocks together prevent it from getting knocked over so easily! The game could benefit a lot from making the claw a lot faster in nature.
Either way, fun concept!