The challenge of this game is to hit all of the coloured blocks using the rebound of the ball on the paddle. The coloured blocks will disappear when they are hit by the ball. The gray blocks are their to add a sort of difficulty because they do not disappear when the ball hits them. They are their to get in the way basically. Their was some difficulty in the code. The uploaded version does not work as accurate as in the acctual scratch program. Unfortuanately, when uploaded it sometimes takes a couple bounces off of the tiles to get them to start disappearing.