Sharpen your mind by playing this awesome brain puzzle game. Sort the ball is a fun and addictive puzzle game! Try to sort the colored balls in the tubes until all balls with the same color stay in the same tube. A challenging yet relaxing game to exercise your brain! FEATURES: • 400+ levels categories by Beginner, Advanced, Master, Expert • One finger control. • FREE & EASY TO PLAY. • NO penalty & time limit; you can enjoy Sort The Bubbles 2021 at your own pace!