Would give this app 5 stars, but the Bubble portion freezes up and gets stuck on a level. It allows you to advance while you're playing, but once you leave and come back, you're back on a lower level and you have to start over again. The only way to fix it is to uninstall and reinstall the game. I have had to do it 3 different times. Also the block portion of the game doesn't correctly update when you earn a new high score. It seems to happen sporadically. Fun to play, but can be frustrating.
A Google user
February 7, 2020