From the back of the box: Trouble with Trouballs Up for a challenge? Twist. Turn. Match. Explode. Welcome to Trouballs, the addictive, mind-numbing puzzler for the Game Boy Color video game system. Face over 100 levels of stacked, multi-colored balls attached to strategically placed rotators. Line up four balls of the same color and watch them explode. Sound easy? Think again. As you clear each level, the challenge grows to mind-boggling proportions. Trouballs will leave you frantic!