No times to beat, no scores to exceed, just a puzzle that needs some thinking and tweaking to solve: slide and roll colors around until they are in their initial position, again.
When a game starts, first the colors are being shuffled, until you stop it with a tap. From that point, you can move blocks of colors around or roll them when they are arranged in a row or a column. You will need both kinds of manipulation in order to complete. Once you are comfortable with the starter level, step higher for further challenges.