The game consists of recovering (our dear GP cleans the screen of the virus of colors) with a certain number of capsules, to do it we have to select a capsule of color, the point of beginning in the treatment always is the central low cell, which always will be of the last selected color, as we are treating our GP the virus become gray, when we select a capsule of color, all the virus that are touching to a gray cell will turn of gray color indicating that this cell has remained vaccinated.

http://dl.openhandhelds.org/cgi-bin/wiz.cgi?0,0,0,0,25,377