Addictive. Infinite variables. Some simple, some frustrating... but all ultimately winnable... which keeps you going minute after minute!

A couple of things. First, if you buy the ad free version, you still have to sit through obnoxiously long ads in order to get a new tube. But that was before the most recent update, which supposedly fixed bugs, but instead has created one. Now, if you try to add a tube, you get an error message saying that you don’t have internet connection even if you most definitely do have an internet connection. Total waste. I messaged the creators of the game a while ago to notify them of this, but there’s been no response and no further update to fix it. Don’t waste your money.

Randomly takes lives from me when I'm playing, even when I don't make a mistake?? Not sure if this is an intended feature or not because the life mechanic is never actually explained to you in gameplay, it's just kind of there. Leaving a one star anyways because it's annoying

Such a fun calming game and it is so satisfying when you get all the right colors in one tube I highly recommend this game!!