Pin The Colors is an Android game by Ad4m4. You have to pin each color of the circle with needles of the same color. There is also a special needle (the multi color needle) which can eliminate all the needles existed in one color of the circle without affecting the score. Oh wait! 2 needles can’t touch each other!

https://play.google.com/store/apps/details?id=com.ad4m4.PinTheColors