4 stars: Didn't want to delete my first 5 star review but since I have to to update I've found after playing this game for a few weeks that many times when choosing an option you get stuck in Google Play \
4 stars: Very oiginal game! Constructive, intelligent and involving with a surprising calming effect! It helps a lot also that we are not been pestered by too many ads.... ( An update: sadly there are ads now at the end of every single game, so on average every minute! ) But the game is still very good!
5 stars: UPDATE: Working again!! Thanks!I have gotten up to level 2659 now but had major problems starting with button for adding an extra tube not working AND button for adding different color in another tube STOPPED working again. Constant pressing of reload button eventually enables the extra tube button.. WEIRD and annoying! This same problem happened in range 2600's!
4 stars: Fun for a short time. The game has the same level of difficulty despite going up levels. It was fun to play at the beginning, but became boring due to repetition. The game is inundated with ads, but for a free game, I can't complain about it. 1 star removed because the levels stay the same. Will be deleting.
4 stars: I love this puzzle. . . BUT, it gets stuck sometimes and I can't do anything about it. This is so frustrating! I'm almost on level 600, so I look forward to playing every evening. What is the problem with this puzzle and how can I get \
4 stars: Pretty fun. Lots of ...