Headache is a freeware game of color matching with a jungle theme for Mac OS X 10.1 and later. As the heads come down the screen, you switch and maneuver them to line up three or more fo the same color vertically or horizontally. When you do, the heads disappear, making room for the next set to come down. This was written for uDevGame 2002 and it was a runner up in the Graphics category.
In Robinson Crusoe style, you are shipwrecked on an uncharted tropical island. Fortunately, this island has a doctor; unfortunately, he’s a witch doctor. Dr. Umfoofoo has gotten lonely in his isolation. having already exhausted the meager conversation abilities of the local flora and fauna, the good Doctor has spared your head his customary shrinking process. However, he expects you to now help him sort out his extremely large collection of heads. His pet alligator, Jake, will pop up from time to time to give you advice or to warn you that the rules are changing (Dr. Umfoofoo can be a little unstable…) And don’t be surprised when others have things to say as well, but don’t mind Ted and Fred, they can be a bit mean at times.
More info and download link here.