Diamond Ball 3 (I have no idea if the previous two games still exist anywhere) is a simple puzzle game where the object is to guide your bouncing ball around the level clearing blocks. Your ball automatically bounces up and down, and you control its left and right movements. You must change your ball's color to match the color of bricks you want to destroy. It's an entertaining game and includes a level editor to create your own levels, although it lacks decent instructions.