"Chromism" is a colour based game where you must match and catch the coloured balls with the correct coloured edge of a square. Rotate the edges of the square clockwise or anti-clockwise with taps on the right or left sides of the screen.
As you catch more correctly coloured balls, the game steadily speeds up, thus testing your skills and reactions.
Make sure you also log into Game Center to compare your high score with your friends, and challenge them to beat you!
You can also read about my mathematical design choices in this game on my blog at http://ringomok.com/mathematics/chromism/