QBz are teensy anthropomorphic blocks that come in several different colors. You don't want these strange little creatures populating your board, so it's up to you to get rid of them by clicking on like-colored, contiguous groups. As you do so, the remaining QBz will shift into new positions, impelled downward by gravity and to the right by some other, invisible force. The bigger the group you dismiss, the more points you get. If you can't get to all the QBz before the water meter on the side of the screen fills up, you lose. Also, if you leave some unpaired QBz stranded, the level ends and you are penalized according to the remaining number. The gameplay in QBz isn't exactly the most original design in the world, but it definitely still works. The puzzle game that makes it cool to be square! Click on and create groups of two or more QBz to clear them from the screen.

Score points by clearing the board of QBz within the set time limit. Click on groups of two or more adjacent QBz to earn points. When you clear the entire board, you’ll receive both a time bonus and a board clearing bonus. For each level, you can use three Special Moves that mix up the QBz by moving them clockwise, counterclockwise, or by mixing up all the QBz on the screen. These moves may or may not help you create matching groups of QBz, so think about the consequences of your actions.
QBz is played in ten rounds, as follows: