I really enjoyed this game! It has a very arcade-like feeling, and I think that simplicity is one of its strongest points. The gameplay is easy to understand, but it still manages to be really fun and addictive.
Sometimes a game does not need to add a lot of new mechanics to be enjoyable, and I think this one captures that classic arcade experience very well. It is a simple but entertaining experience that makes you want to keep playing and improving your score. :D