Frustrating
This game could get a five star rating except for the fact that the player is not allowed to advance beyond the 16th level for any given time. While I have gone past this level several times, when I have to pause the game for a time it brings me back to level 16. It seems that the developer has done this because he hasn’t developed enough levels past 16. If this was s true, the developer should not release a game until he allows the player to play on. This is true of other games by this developer. I would prefer to fail at a level rather than not to have the opportunity to play on if I am successful. Give us more challenges.