Good game. Enjoy it. Wish you could swap out one block every 5 levels. It would make it more fun and let me get some use out of different blocks. Would definitely give 5 stars if you did that. Right now there are 4-5 "best" blocks that it's just hard NOT to use. Also, not working since the last Android update. Will give 4-5 stars once fixed (fixed...putting up to 4 stars)