Great game...but...

The game is fantastic. Addicting, simple and fun. The ads are a problem. Once an ad comes up, I cant close it. It freezes on the screen and I have to close the game and restart it. I also agree with another reviewer in that some of the earlier stages of the tiles are somewhat difficult to distinguish. Perhaps a bit of color coding or other distinguishing rank along with the advancement in buildings? Otherwise, great job!

The Machine-o about City 2048